Company Name: State/Province:
If you were a paid member, you could be loading this into any version of Excel or Access (or any other software that understands CSV) right now for less than you paid for your breakfast or lunch today. If you are a member please login to access this and other functionality.

🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
240-212MDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-225MDCORE COMMUNICATIONS, INC.- MDN/A2593FREDERICKMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-231MDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-233 is split into 1,000-number blocks - detail below
240-233-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLNOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-239MDCORE COMMUNICATIONS, INC.- MDN/A2593LEONARDTNDMSCMDAGDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: DMSCMDAGDS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-251MDCORE COMMUNICATIONS, INC.- MDN/A2593HIGHFIELDMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-254 is split into 1,000-number blocks - detail below
240-254-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLNOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-258 is split into 1,000-number blocks - detail below
240-258-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGENOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-260 is split into 1,000-number blocks - detail below
240-260-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-260-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-267 is split into 1,000-number blocks - detail below
240-267-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-267-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-267-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-267-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-267-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-275MDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-279MDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFDMSCMDAGDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: DMSCMDAGDS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-287MDCORE COMMUNICATIONS, INC.- MDN/A2593HANCOCKMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-292 is split into 1,000-number blocks - detail below
240-292-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-322MDCORE COMMUNICATIONS, INC.- MDN/A2593MCCOOLEMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-323MDCORE COMMUNICATIONS, INC.- MDN/A2593EMMITSBURGMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-325MDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236DMSCMDAGDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: DMSCMDAGDS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-327MDCORE COMMUNICATIONS, INC.- MDN/A2593GAITHERSBGDMSCMDAGDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: DMSCMDAGDS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-336MDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2DMSCMDAGDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: DMSCMDAGDS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-337 is split into 1,000-number blocks - detail below
240-337-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN06/07/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-337-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-337-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-337-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-337-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-337-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN06/07/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-369MDCORE COMMUNICATIONS, INC.- MDN/A2593MOUNT AIRYMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-378MDCORE COMMUNICATIONS, INC.- MDN/A2593CUMBERLANDMTARMDSD00T00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSD00T))
🕘 Prefix History
🔎 Explore Carrier Information
240-385 is split into 1,000-number blocks - detail below
240-385-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-407 is split into 1,000-number blocks - detail below
240-407-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-407-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-414 is split into 1,000-number blocks - detail below
240-414-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-414-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-414-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-414-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-451 is split into 1,000-number blocks - detail below
240-451-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593THURMONTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-451-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593THURMONTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-451-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593THURMONTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-465 is split into 1,000-number blocks - detail below
240-465-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-465-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-465-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-465-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-465-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-465-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-465-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2NOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-488 is split into 1,000-number blocks - detail below
240-488-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-509 is split into 1,000-number blocks - detail below
240-509-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-509-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-509-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-512MDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13BLTMMD91DS008/08/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-514 is split into 1,000-number blocks - detail below
240-514-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-518 is split into 1,000-number blocks - detail below
240-518-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-526 is split into 1,000-number blocks - detail below
240-526-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LEONARDTNNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-526-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LEONARDTNNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-526-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LEONARDTNNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-526-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LEONARDTNNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-530MDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFARTNVAARXJY00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: ARTNVAARXJY))
🕘 Prefix History
🔎 Explore Carrier Information
240-530 is split into 1,000-number blocks - detail below
240-530-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFARTNVAARXJY10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: ARTNVAARXJY))
🕘 Prefix History
🔎 Explore Carrier Information
240-530-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFARTNVAARXJY10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: ARTNVAARXJY))
🕘 Prefix History
🔎 Explore Carrier Information
240-530-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFARTNVAARXJY10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: ARTNVAARXJY))
🕘 Prefix History
🔎 Explore Carrier Information
240-530-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFARTNVAARXJY10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: ARTNVAARXJY))
🕘 Prefix History
🔎 Explore Carrier Information
240-530-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFARTNVAARXJY10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: ARTNVAARXJY))
🕘 Prefix History
🔎 Explore Carrier Information
240-537 is split into 1,000-number blocks - detail below
240-537-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-537-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-537-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-537-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-537-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-537-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-537-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-544 is split into 1,000-number blocks - detail below
240-544-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-546 is split into 1,000-number blocks - detail below
240-546-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-546-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-546-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-548MDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14CHCHMDBEPS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-548 is split into 1,000-number blocks - detail below
240-548-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14CHCHMDBEPS010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-548-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14CHCHMDBEPS010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-548-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14CHCHMDBEPS010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-548-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14CHCHMDBEPS010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-548-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14CHCHMDBEPS010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-557 is split into 1,000-number blocks - detail below
240-557-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-557-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-557-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-563 is split into 1,000-number blocks - detail below
240-563-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-563-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-564 is split into 1,000-number blocks - detail below
240-564-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-564-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-564-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-569 is split into 1,000-number blocks - detail below
240-569-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FLINTSTONENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-569-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FLINTSTONENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-569-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FLINTSTONENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-569-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FLINTSTONENOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-569-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FLINTSTONENOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576 is split into 1,000-number blocks - detail below
240-576-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-576-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-585 is split into 1,000-number blocks - detail below
240-585-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-585-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-585-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588 is split into 1,000-number blocks - detail below
240-588-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN06/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN06/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN03/04/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN03/04/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN03/04/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN03/04/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN03/04/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-588-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GRANTSVLNOCLLIKNOWN06/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-589 is split into 1,000-number blocks - detail below
240-589-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MCCOOLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-589-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MCCOOLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-589-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MCCOOLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-589-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MCCOOLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-590 is split into 1,000-number blocks - detail below
240-590-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN12NOCLLIKNOWN06/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-590-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN12NOCLLIKNOWN06/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-590-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN12NOCLLIKNOWN06/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-590-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN12NOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-590-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN12NOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-594 is split into 1,000-number blocks - detail below
240-594-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BITTINGERNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-594-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BITTINGERNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-596MDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236CHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-596 is split into 1,000-number blocks - detail below
240-596-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236CHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-596-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236CHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-596-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236CHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-596-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236CHCHMDBEPS004/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-596-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236CHCHMDBEPS004/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-597 is split into 1,000-number blocks - detail below
240-597-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GAITHERSBGNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-597-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GAITHERSBGNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-597-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GAITHERSBGNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-598MDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLCHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-598 is split into 1,000-number blocks - detail below
240-598-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-598-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-598-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-598-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLCHCHMDBEPS004/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-598-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLCHCHMDBEPS004/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-610MDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4CHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-610 is split into 1,000-number blocks - detail below
240-610-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4CHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-617 is split into 1,000-number blocks - detail below
240-617-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HIGHFIELDNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-617-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HIGHFIELDNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-621 is split into 1,000-number blocks - detail below
240-621-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-622MDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATACHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-622 is split into 1,000-number blocks - detail below
240-622-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATACHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-622-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATACHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-622-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATACHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-622-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATACHCHMDBEPS003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-622-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATACHCHMDBEPS003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-622-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATACHCHMDBEPS003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-624 is split into 1,000-number blocks - detail below
240-624-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-627 is split into 1,000-number blocks - detail below
240-627-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-628MDCORE COMMUNICATIONS, INC.- MDN/A2593MECHANCSVLCHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-628 is split into 1,000-number blocks - detail below
240-628-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MECHANCSVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-628-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MECHANCSVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-628-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MECHANCSVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-633 is split into 1,000-number blocks - detail below
240-633-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-633-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HUGHESVLNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-634MDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-634 is split into 1,000-number blocks - detail below
240-634-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-634-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-634-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-634-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-634-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-634-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-634-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGECHCHMDBEPS003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635MDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635 is split into 1,000-number blocks - detail below
240-635-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS004/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS004/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS004/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-635-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOMPKINSVLCHCHMDBEPS004/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-637MDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3CHCHMDBEPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-637 is split into 1,000-number blocks - detail below
240-637-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3CHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-637-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3CHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-637-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3CHCHMDBEPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-637-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3CHCHMDBEPS010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-637-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3CHCHMDBEPS010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-639MDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236CHCHMDBEPS006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-639 is split into 1,000-number blocks - detail below
240-639-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236CHCHMDBEPS006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-639-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236CHCHMDBEPS006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-639-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236CHCHMDBEPS006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-642 is split into 1,000-number blocks - detail below
240-642-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN10NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-642-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN10NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-642-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN10NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-642-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN10NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-642-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN10NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-647MDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-647 is split into 1,000-number blocks - detail below
240-647-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-647-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-647-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-647-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-647-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-647-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-647-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGFRDRMDFRPS007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648MDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648 is split into 1,000-number blocks - detail below
240-648-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-648-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-649MDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGFRDRMDFRPS006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-649 is split into 1,000-number blocks - detail below
240-649-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-649-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-649-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGFRDRMDFRPS006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-649-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-649-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-655 is split into 1,000-number blocks - detail below
240-655-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KITZMILLERNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-655-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KITZMILLERNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-655-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KITZMILLERNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-655-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KITZMILLERNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-655-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KITZMILLERNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-657 is split into 1,000-number blocks - detail below
240-657-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FROSTBURGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-657-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FROSTBURGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-657-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FROSTBURGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-659 is split into 1,000-number blocks - detail below
240-659-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-659-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-659-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-663 is split into 1,000-number blocks - detail below
240-663-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MIDDLETOWNNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-663-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MIDDLETOWNNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-663-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MIDDLETOWNNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-663-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MIDDLETOWNNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-664 is split into 1,000-number blocks - detail below
240-664-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CUMBERLANDNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-664-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CUMBERLANDNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-664-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CUMBERLANDNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-664-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CUMBERLANDNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-664-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CUMBERLANDNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-666 is split into 1,000-number blocks - detail below
240-666-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANJEMOYNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-666-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANJEMOYNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-666-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANJEMOYNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-679MDCORE COMMUNICATIONS, INC.- MDN/A2593FRIENDSVLFRDRMDFRPS006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-679 is split into 1,000-number blocks - detail below
240-679-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FRIENDSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-679-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FRIENDSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-679-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FRIENDSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-679-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FRIENDSVLFRDRMDFRPS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: FRDRMDFRPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-684 is split into 1,000-number blocks - detail below
240-684-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-732 is split into 1,000-number blocks - detail below
240-732-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MOUNT AIRYNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-732-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MOUNT AIRYNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-732-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MOUNT AIRYNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-734 is split into 1,000-number blocks - detail below
240-734-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-734-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-745 is split into 1,000-number blocks - detail below
240-745-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-754 is split into 1,000-number blocks - detail below
240-754-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-754-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-754-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-754-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-765 is split into 1,000-number blocks - detail below
240-765-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-771 is split into 1,000-number blocks - detail below
240-771-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593POOLESVLNOCLLIKNOWN06/07/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-771-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593POOLESVLNOCLLIKNOWN06/07/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-771-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593POOLESVLNOCLLIKNOWN06/07/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-774 is split into 1,000-number blocks - detail below
240-774-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LONACONINGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-774-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LONACONINGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-774-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LONACONINGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-774-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LONACONINGNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-775 is split into 1,000-number blocks - detail below
240-775-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WESTERNPTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-775-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WESTERNPTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-775-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WESTERNPTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-784 is split into 1,000-number blocks - detail below
240-784-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-784-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-787 is split into 1,000-number blocks - detail below
240-787-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN03/13/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-787-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-800MDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2CHCHMDBEPS006/22/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-800 is split into 1,000-number blocks - detail below
240-800-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2CHCHMDBEPS006/27/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-800-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN2CHCHMDBEPS006/27/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: CHCHMDBEPS0))
🕘 Prefix History
🔎 Explore Carrier Information
240-806 is split into 1,000-number blocks - detail below
240-806-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593INDIANHEADNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-806-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593INDIANHEADNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-806-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593INDIANHEADNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-828 is split into 1,000-number blocks - detail below
240-828-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-828-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-828-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-828-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-828-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-833 is split into 1,000-number blocks - detail below
240-833-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-833-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-842 is split into 1,000-number blocks - detail below
240-842-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-842-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-842-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN08/02/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-842-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-843 is split into 1,000-number blocks - detail below
240-843-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-843-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-843-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-843-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-843-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-843-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-843-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z13NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-846 is split into 1,000-number blocks - detail below
240-846-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-846-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-846-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-846-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-862 is split into 1,000-number blocks - detail below
240-862-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MT SAVAGENOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-862-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MT SAVAGENOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-862-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MT SAVAGENOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-865 is split into 1,000-number blocks - detail below
240-865-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN03/06/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-867 is split into 1,000-number blocks - detail below
240-867-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-867-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-867-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-867-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-867-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-867-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-878 is split into 1,000-number blocks - detail below
240-878-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-878-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-878-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-878-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-878-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-897 is split into 1,000-number blocks - detail below
240-897-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-897-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-897-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-897-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-897-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-908 is split into 1,000-number blocks - detail below
240-908-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALKERSVLNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-908-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALKERSVLNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-908-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALKERSVLNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-915 is split into 1,000-number blocks - detail below
240-915-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEW MARKETNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-915-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEW MARKETNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-915-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEW MARKETNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-985 is split into 1,000-number blocks - detail below
240-985-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLIAMSPTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-985-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLIAMSPTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-985-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLIAMSPTNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-996 is split into 1,000-number blocks - detail below
240-996-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRUNSWICKNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-996-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRUNSWICKNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-996-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRUNSWICKNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-996-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRUNSWICKNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-996-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRUNSWICKNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-998 is split into 1,000-number blocks - detail below
240-998-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HANCOCKNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-998-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HANCOCKNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
240-998-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HANCOCKNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-220 is split into 1,000-number blocks - detail below
301-220-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-223 is split into 1,000-number blocks - detail below
301-223-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLIAMSPTNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-232 is split into 1,000-number blocks - detail below
301-232-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ASHTON236NOCLLIKNOWN02/25/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-234 is split into 1,000-number blocks - detail below
301-234-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-234-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-234-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-234-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-235 is split into 1,000-number blocks - detail below
301-235-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-235-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-235-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-238 is split into 1,000-number blocks - detail below
301-238-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-242 is split into 1,000-number blocks - detail below
301-242-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN02/25/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-242-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN03/13/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-242-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN03/13/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-244 is split into 1,000-number blocks - detail below
301-244-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN3NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-245 is split into 1,000-number blocks - detail below
301-245-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BITTINGERNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-246 is split into 1,000-number blocks - detail below
301-246-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANJEMOYNOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-255 is split into 1,000-number blocks - detail below
301-255-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-264 is split into 1,000-number blocks - detail below
301-264-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MT SAVAGENOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-271 is split into 1,000-number blocks - detail below
301-271-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593THURMONTNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-278 is split into 1,000-number blocks - detail below
301-278-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-281 is split into 1,000-number blocks - detail below
301-281-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN6NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-287 is split into 1,000-number blocks - detail below
301-287-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-287-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-288 is split into 1,000-number blocks - detail below
301-288-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN12NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-289 is split into 1,000-number blocks - detail below
301-289-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-289-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-289-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-289-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-289-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-290 is split into 1,000-number blocks - detail below
301-290-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MECHANCSVLNOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-291 is split into 1,000-number blocks - detail below
301-291-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-291-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-291-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-298 is split into 1,000-number blocks - detail below
301-298-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z15NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-298-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z15NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-313 is split into 1,000-number blocks - detail below
301-313-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-321 is split into 1,000-number blocks - detail below
301-321-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-321-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-321-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-321-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-348 is split into 1,000-number blocks - detail below
301-348-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-348-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-348-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-348-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN08/02/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-348-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-348-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-358 is split into 1,000-number blocks - detail below
301-358-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z15NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-359 is split into 1,000-number blocks - detail below
301-359-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WESTERNPTNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-368 is split into 1,000-number blocks - detail below
301-368-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-368-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-371 is split into 1,000-number blocks - detail below
301-371-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MIDDLETOWNNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-372 is split into 1,000-number blocks - detail below
301-372-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-374 is split into 1,000-number blocks - detail below
301-374-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-374-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-374-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-375 is split into 1,000-number blocks - detail below
301-375-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593INDIANHEADNOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391 is split into 1,000-number blocks - detail below
301-391-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-391-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-396 is split into 1,000-number blocks - detail below
301-396-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-397 is split into 1,000-number blocks - detail below
301-397-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-397-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-414 is split into 1,000-number blocks - detail below
301-414-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN07/01/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-414-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN07/01/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-414-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN07/01/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-414-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-414-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-416 is split into 1,000-number blocks - detail below
301-416-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-416-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-416-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-430 is split into 1,000-number blocks - detail below
301-430-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-430-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-430-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-433 is split into 1,000-number blocks - detail below
301-433-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN5NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-446 is split into 1,000-number blocks - detail below
301-446-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-447 is split into 1,000-number blocks - detail below
301-447-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EMMITSBURGNOCLLIKNOWN03/04/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-453 is split into 1,000-number blocks - detail below
301-453-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KITZMILLERNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-463 is split into 1,000-number blocks - detail below
301-463-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LONACONINGNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-470 is split into 1,000-number blocks - detail below
301-470-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-477 is split into 1,000-number blocks - detail below
301-477-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-477-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-478 is split into 1,000-number blocks - detail below
301-478-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FLINTSTONENOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-479 is split into 1,000-number blocks - detail below
301-479-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-479-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-479-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-482 is split into 1,000-number blocks - detail below
301-482-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-482-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-482-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-482-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-482-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-486 is split into 1,000-number blocks - detail below
301-486-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-486-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-486-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-489 is split into 1,000-number blocks - detail below
301-489-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-501 is split into 1,000-number blocks - detail below
301-501-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-501-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-508 is split into 1,000-number blocks - detail below
301-508-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-533 is split into 1,000-number blocks - detail below
301-533-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-539 is split into 1,000-number blocks - detail below
301-539-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LA PLATANOCLLIKNOWN02/25/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-574 is split into 1,000-number blocks - detail below
301-574-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z15NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-575 is split into 1,000-number blocks - detail below
301-575-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LAUREL236NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-579 is split into 1,000-number blocks - detail below
301-579-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-603 is split into 1,000-number blocks - detail below
301-603-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-603-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-623 is split into 1,000-number blocks - detail below
301-623-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-623-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-623-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-623-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-623-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629 is split into 1,000-number blocks - detail below
301-629-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-629-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-632 is split into 1,000-number blocks - detail below
301-632-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-632-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-638 is split into 1,000-number blocks - detail below
301-638-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-666 is split into 1,000-number blocks - detail below
301-666-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-666-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-666-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-666-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-666-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN08/02/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-666-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-666-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-685 is split into 1,000-number blocks - detail below
301-685-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-685-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DAMASCS236NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-689 is split into 1,000-number blocks - detail below
301-689-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FROSTBURGNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-691 is split into 1,000-number blocks - detail below
301-691-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593POOLESVLNOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-692 is split into 1,000-number blocks - detail below
301-692-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-692-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-692-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-692-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-715 is split into 1,000-number blocks - detail below
301-715-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z15NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-715-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z15NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-715-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z15NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-719 is split into 1,000-number blocks - detail below
301-719-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-719-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-719-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-719-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-719-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN16NOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-720 is split into 1,000-number blocks - detail below
301-720-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-720-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-720-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-720-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-720-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-750MDCORE COMMUNICATIONS, INC.- MDN/A2593FRIENDSVLMTARMDSDD2003/18/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDD20))
🕘 Prefix History
🔎 Explore Carrier Information
301-750 is split into 1,000-number blocks - detail below
301-750-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FRIENDSVLMTARMDSDD2003/19/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDD20))
🕘 Prefix History
🔎 Explore Carrier Information
301-756 is split into 1,000-number blocks - detail below
301-756-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-761 is split into 1,000-number blocks - detail below
301-761-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-764 is split into 1,000-number blocks - detail below
301-764-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-764-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-764-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-764-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALDORFNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-782 is split into 1,000-number blocks - detail below
301-782-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRANDYWINENOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-789MDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4DMSCMDAGDS108/13/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: DMSCMDAGDS1))
🕘 Prefix History
🔎 Explore Carrier Information
301-789 is split into 1,000-number blocks - detail below
301-789-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSHNGTNZN4DMSCMDAGDS108/30/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: DMSCMDAGDS1))
🕘 Prefix History
🔎 Explore Carrier Information
301-794 is split into 1,000-number blocks - detail below
301-794-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-799MDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLMTARMDSDDS003/18/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDDS0))
🕘 Prefix History
🔎 Explore Carrier Information
301-799 is split into 1,000-number blocks - detail below
301-799-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593KEEDYSVLMTARMDSDDS003/19/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDDS0))
🕘 Prefix History
🔎 Explore Carrier Information
301-810 is split into 1,000-number blocks - detail below
301-810-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BUCKEYSTNNOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-810-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BUCKEYSTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-810-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BUCKEYSTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-810-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BUCKEYSTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-822 is split into 1,000-number blocks - detail below
301-822-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-822-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN11NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-823 is split into 1,000-number blocks - detail below
301-823-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-823-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-824 is split into 1,000-number blocks - detail below
301-824-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITHSBURGNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-833 is split into 1,000-number blocks - detail below
301-833-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-834 is split into 1,000-number blocks - detail below
301-834-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRUNSWICKNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-845 is split into 1,000-number blocks - detail below
301-845-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WALKERSVLNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-857MDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGMTARMDSDDS007/12/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDDS0))
🕘 Prefix History
🔎 Explore Carrier Information
301-857 is split into 1,000-number blocks - detail below
301-857-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CLEAR SPGMTARMDSDDS007/18/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDDS0))
🕘 Prefix History
🔎 Explore Carrier Information
301-859 is split into 1,000-number blocks - detail below
301-859-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-859-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-860 is split into 1,000-number blocks - detail below
301-860-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-867 is split into 1,000-number blocks - detail below
301-867-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-867-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z14NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-882MDCORE COMMUNICATIONS, INC.- MDN/A2593NEW MARKETMTARMDSDDS003/18/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDDS0))
🕘 Prefix History
🔎 Explore Carrier Information
301-882 is split into 1,000-number blocks - detail below
301-882-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEW MARKETMTARMDSDDS003/19/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: MTARMDSDDS0))
🕘 Prefix History
🔎 Explore Carrier Information
301-886 is split into 1,000-number blocks - detail below
301-886-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-886-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-886-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-886-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-886-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN03/28/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914 is split into 1,000-number blocks - detail below
301-914-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-914-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OAKLANDNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-923 is split into 1,000-number blocks - detail below
301-923-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-923-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-923-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-923-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-935 is split into 1,000-number blocks - detail below
301-935-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-935-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-935-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-935-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-935-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-936 is split into 1,000-number blocks - detail below
301-936-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-936-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-936-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-936-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-936-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-936-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-936-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAGERSTOWNNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-939 is split into 1,000-number blocks - detail below
301-939-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-939-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG236Z13NOCLLIKNOWN04/11/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-964 is split into 1,000-number blocks - detail below
301-964-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MYERSVILLENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Hagerstown MD (240)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-970 is split into 1,000-number blocks - detail below
301-970-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-970-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-970-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-973 is split into 1,000-number blocks - detail below
301-973-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-973-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-973-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-973-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-973-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-973-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNG238Z14NOCLLIKNOWN10/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-978 is split into 1,000-number blocks - detail below
301-978-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WSNGTNZN10NOCLLIKNOWN02/26/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
301-997 is split into 1,000-number blocks - detail below
301-997-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593LEONARDTNNOCLLIKNOWN02/05/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-214MDCORE COMMUNICATIONS, INC.- MDN/A2593RISING SUNBLTMMD91GT003/11/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
410-214 is split into 1,000-number blocks - detail below
410-214-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RISING SUNBLTMMD91GT003/12/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
410-214-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RISING SUNBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
410-214-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RISING SUNBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
410-214-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RISING SUNBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
410-214-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RISING SUNBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
410-214-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RISING SUNBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
410-226 is split into 1,000-number blocks - detail below
410-226-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-237 is split into 1,000-number blocks - detail below
410-237-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-248 is split into 1,000-number blocks - detail below
410-248-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-264 is split into 1,000-number blocks - detail below
410-264-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-264-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-275 is split into 1,000-number blocks - detail below
410-275-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-305 is split into 1,000-number blocks - detail below
410-305-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ODENTONNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-314 is split into 1,000-number blocks - detail below
410-314-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARBUTUSNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-314-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARBUTUSNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-315 is split into 1,000-number blocks - detail below
410-315-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-315-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-317 is split into 1,000-number blocks - detail below
410-317-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARGRGBSNISNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-317-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARGRGBSNISNOCLLIKNOWN04/18/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-334 is split into 1,000-number blocks - detail below
410-334-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-343 is split into 1,000-number blocks - detail below
410-343-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARKSGLNCNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-343-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARKSGLNCNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-348 is split into 1,000-number blocks - detail below
410-348-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-352 is split into 1,000-number blocks - detail below
410-352-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BISHOPVLNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-352-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BISHOPVLNOCLLIKNOWN03/13/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-357 is split into 1,000-number blocks - detail below
410-357-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKTONNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-357-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKTONNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-364 is split into 1,000-number blocks - detail below
410-364-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HILLSBORONOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-376 is split into 1,000-number blocks - detail below
410-376-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593VIENNANOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-394 is split into 1,000-number blocks - detail below
410-394-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-397 is split into 1,000-number blocks - detail below
410-397-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATENOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-401 is split into 1,000-number blocks - detail below
410-401-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRYNPKLNCMNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-403 is split into 1,000-number blocks - detail below
410-403-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COCKEYSVLNOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-406 is split into 1,000-number blocks - detail below
410-406-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ESSEXNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-421 is split into 1,000-number blocks - detail below
410-421-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-421-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-421-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-425 is split into 1,000-number blocks - detail below
410-425-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SMITH ISNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-429 is split into 1,000-number blocks - detail below
410-429-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-429-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-431 is split into 1,000-number blocks - detail below
410-431-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-438 is split into 1,000-number blocks - detail below
410-438-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-457 is split into 1,000-number blocks - detail below
410-457-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-472 is split into 1,000-number blocks - detail below
410-472-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARKSGLNCNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-476 is split into 1,000-number blocks - detail below
410-476-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TRAPPENOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-479 is split into 1,000-number blocks - detail below
410-479-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-482 is split into 1,000-number blocks - detail below
410-482-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GREENSBORONOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-501 is split into 1,000-number blocks - detail below
410-501-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARBUTUSNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-505 is split into 1,000-number blocks - detail below
410-505-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-510 is split into 1,000-number blocks - detail below
410-510-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-514 is split into 1,000-number blocks - detail below
410-514-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-520 is split into 1,000-number blocks - detail below
410-520-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OCEAN CITYNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-525 is split into 1,000-number blocks - detail below
410-525-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-534 is split into 1,000-number blocks - detail below
410-534-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-536 is split into 1,000-number blocks - detail below
410-536-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARBUTUSNOCLLIKNOWN03/13/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-552 is split into 1,000-number blocks - detail below
410-552-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLENOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-556 is split into 1,000-number blocks - detail below
410-556-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-557 is split into 1,000-number blocks - detail below
410-557-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-557-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-567 is split into 1,000-number blocks - detail below
410-567-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGENOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-575 is split into 1,000-number blocks - detail below
410-575-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-575-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-592 is split into 1,000-number blocks - detail below
410-592-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-592-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-593 is split into 1,000-number blocks - detail below
410-593-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-593-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-623 is split into 1,000-number blocks - detail below
410-623-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MARIONNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-629 is split into 1,000-number blocks - detail below
410-629-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN02/22/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-629-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-629-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-629-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-630 is split into 1,000-number blocks - detail below
410-630-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-632 is split into 1,000-number blocks - detail below
410-632-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SNOW HILLNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-634 is split into 1,000-number blocks - detail below
410-634-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-634-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-639 is split into 1,000-number blocks - detail below
410-639-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-645 is split into 1,000-number blocks - detail below
410-645-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-645-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-645-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-645-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-646 is split into 1,000-number blocks - detail below
410-646-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-648 is split into 1,000-number blocks - detail below
410-648-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GALENANOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-670 is split into 1,000-number blocks - detail below
410-670-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-672 is split into 1,000-number blocks - detail below
410-672-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ODENTONNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-673 is split into 1,000-number blocks - detail below
410-673-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-673-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONNOCLLIKNOWN02/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-682 is split into 1,000-number blocks - detail below
410-682-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-692 is split into 1,000-number blocks - detail below
410-692-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-695 is split into 1,000-number blocks - detail below
410-695-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ODENTONNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-697 is split into 1,000-number blocks - detail below
410-697-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MILLERSVLNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-702 is split into 1,000-number blocks - detail below
410-702-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-709 is split into 1,000-number blocks - detail below
410-709-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-741 is split into 1,000-number blocks - detail below
410-741-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-745 is split into 1,000-number blocks - detail below
410-745-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STMICHAELSNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-754 is split into 1,000-number blocks - detail below
410-754-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FEDERALSBGNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-755 is split into 1,000-number blocks - detail below
410-755-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-759 is split into 1,000-number blocks - detail below
410-759-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-759-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-759-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-759-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-759-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-759-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-762 is split into 1,000-number blocks - detail below
410-762-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-762-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN02/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-763 is split into 1,000-number blocks - detail below
410-763-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-763-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-763-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-770 is split into 1,000-number blocks - detail below
410-770-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN02/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-774 is split into 1,000-number blocks - detail below
410-774-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-784 is split into 1,000-number blocks - detail below
410-784-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DEALISLANDNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-824 is split into 1,000-number blocks - detail below
410-824-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-824-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-827 is split into 1,000-number blocks - detail below
410-827-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593QUEENSTOWNNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-834 is split into 1,000-number blocks - detail below
410-834-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-835 is split into 1,000-number blocks - detail below
410-835-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLARDSNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-835-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLARDSNOCLLIKNOWN05/22/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-862 is split into 1,000-number blocks - detail below
410-862-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-862-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-873 is split into 1,000-number blocks - detail below
410-873-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKENOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-873-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-873-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-873-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-881 is split into 1,000-number blocks - detail below
410-881-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-883 is split into 1,000-number blocks - detail below
410-883-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHARPTOWNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-883-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHARPTOWNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-885 is split into 1,000-number blocks - detail below
410-885-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-886 is split into 1,000-number blocks - detail below
410-886-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TILGHMANNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-888 is split into 1,000-number blocks - detail below
410-888-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-896 is split into 1,000-number blocks - detail below
410-896-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-904 is split into 1,000-number blocks - detail below
410-904-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-904-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-904-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-928 is split into 1,000-number blocks - detail below
410-928-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MILLINGTONNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-942 is split into 1,000-number blocks - detail below
410-942-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAVREGRACENOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-943 is split into 1,000-number blocks - detail below
410-943-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HURLOCKNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-968 is split into 1,000-number blocks - detail below
410-968-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CRISFIELDNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-994 is split into 1,000-number blocks - detail below
410-994-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-994-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-995 is split into 1,000-number blocks - detail below
410-995-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
410-995-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-206 is split into 1,000-number blocks - detail below
443-206-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLENOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-215MDCORE COMMUNICATIONS, INC.- MDN/A2593CHESTERTNESTNMDBNDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-216 is split into 1,000-number blocks - detail below
443-216-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-217MDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-222 is split into 1,000-number blocks - detail below
443-222-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN02/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-222-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-222-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-222-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-222-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-222-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-227 is split into 1,000-number blocks - detail below
443-227-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITNOCLLIKNOWN06/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-232MDCORE COMMUNICATIONS, INC.- MDN/A2593WILLARDSSLBRMD90DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-232 is split into 1,000-number blocks - detail below
443-232-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLARDSSLBRMD90DS005/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-232-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLARDSSLBRMD90DS005/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-232-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLARDSSLBRMD90DS005/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-232-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WILLARDSSLBRMD90DS005/22/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-233 is split into 1,000-number blocks - detail below
443-233-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593VIENNANOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-233-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593VIENNANOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-234 is split into 1,000-number blocks - detail below
443-234-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SNOW HILLNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-234-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SNOW HILLNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-236MDCORE COMMUNICATIONS, INC.- MDN/A2593CARDIFFBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-237MDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-238 is split into 1,000-number blocks - detail below
443-238-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKTONNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-246MDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-247 is split into 1,000-number blocks - detail below
443-247-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593UNION BDGNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-247-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593UNION BDGNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-249 is split into 1,000-number blocks - detail below
443-249-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLNOCLLIKNOWN03/05/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-258 is split into 1,000-number blocks - detail below
443-258-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-258-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-258-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-262 is split into 1,000-number blocks - detail below
443-262-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-264MDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLEBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-264 is split into 1,000-number blocks - detail below
443-264-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLEBLTMMDCHYMD03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-264-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLEBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-264-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLEBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-264-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLEBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-264-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLEBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-265 is split into 1,000-number blocks - detail below
443-265-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-265-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FORKNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-268MDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMOREBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-269MDCORE COMMUNICATIONS, INC.- MDN/A2593TOWSONBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-269 is split into 1,000-number blocks - detail below
443-269-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOWSONBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-269-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOWSONBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-269-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOWSONBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-272 is split into 1,000-number blocks - detail below
443-272-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-273 is split into 1,000-number blocks - detail below
443-273-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-276 is split into 1,000-number blocks - detail below
443-276-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-284MDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284 is split into 1,000-number blocks - detail below
443-284-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT004/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT004/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-284-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238BLTMMD91GT010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-290 is split into 1,000-number blocks - detail below
443-290-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-292 is split into 1,000-number blocks - detail below
443-292-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-295 is split into 1,000-number blocks - detail below
443-295-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRINCEFRCKNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-297 is split into 1,000-number blocks - detail below
443-297-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARBUTUSNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-298 is split into 1,000-number blocks - detail below
443-298-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-323 is split into 1,000-number blocks - detail below
443-323-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHARPTOWNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-323-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHARPTOWNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-323-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHARPTOWNNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-323-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHARPTOWNNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-328 is split into 1,000-number blocks - detail below
443-328-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-329 is split into 1,000-number blocks - detail below
443-329-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-329-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO236NOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Washington DC METRO (includes MD and VA suburbs) (236)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-334 is split into 1,000-number blocks - detail below
443-334-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-334-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-337MDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-337 is split into 1,000-number blocks - detail below
443-337-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTBLTMMDCHYMD03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-337-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-337-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-337-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-337-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTBLTMMDCHYMD03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-337-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTBLTMMDCHYMD07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-341 is split into 1,000-number blocks - detail below
443-341-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CATONSVLNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-343 is split into 1,000-number blocks - detail below
443-343-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MILLERSVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-344MDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-346MDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-346 is split into 1,000-number blocks - detail below
443-346-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMDCHYMD03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-346-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-346-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMDCHYMD03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-346-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-346-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-346-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-348 is split into 1,000-number blocks - detail below
443-348-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-349MDCORE COMMUNICATIONS, INC.- MDN/A2593SILVER RUNBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-352 is split into 1,000-number blocks - detail below
443-352-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-352-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-355 is split into 1,000-number blocks - detail below
443-355-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357 is split into 1,000-number blocks - detail below
443-357-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-357-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-361MDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLEBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-362 is split into 1,000-number blocks - detail below
443-362-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-362-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-362-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-362-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-363MDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNBLTMMD91GT000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-363 is split into 1,000-number blocks - detail below
443-363-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNBLTMMD91GT010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-363-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-363-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-367 is split into 1,000-number blocks - detail below
443-367-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-368MDCORE COMMUNICATIONS, INC.- MDN/A2593WESTMINSTRBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-369MDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-376 is split into 1,000-number blocks - detail below
443-376-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-376-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-376-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-382MDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-385MDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONESTNMDBNDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-387MDCORE COMMUNICATIONS, INC.- MDN/A2593POCOMOKEESTNMDBNDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-389MDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYESTNMDBNDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-398 is split into 1,000-number blocks - detail below
443-398-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-412 is split into 1,000-number blocks - detail below
443-412-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-419 is split into 1,000-number blocks - detail below
443-419-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-427MDCORE COMMUNICATIONS, INC.- MDN/A2593PRINCEANNEESTNMDBNDS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-428MDCORE COMMUNICATIONS, INC.- MDN/A2593COCKEYSVLBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-431MDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-431 is split into 1,000-number blocks - detail below
443-431-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNBLTMMDCHYMD07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-431-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-431-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-431-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-434 is split into 1,000-number blocks - detail below
443-434-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FEDERALSBGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-434-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FEDERALSBGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-434-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FEDERALSBGNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-446 is split into 1,000-number blocks - detail below
443-446-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593QUEENSTOWNNOCLLIKNOWN04/18/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-446-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593QUEENSTOWNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-446-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593QUEENSTOWNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-446-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593QUEENSTOWNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-446-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593QUEENSTOWNNOCLLIKNOWN04/18/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-446-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593QUEENSTOWNNOCLLIKNOWN04/18/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-456 is split into 1,000-number blocks - detail below
443-456-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-493 is split into 1,000-number blocks - detail below
443-493-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-496 is split into 1,000-number blocks - detail below
443-496-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-496-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-496-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-497 is split into 1,000-number blocks - detail below
443-497-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-498 is split into 1,000-number blocks - detail below
443-498-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CATONSVLNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-498-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CATONSVLNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-502 is split into 1,000-number blocks - detail below
443-502-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAVREGRACENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-504 is split into 1,000-number blocks - detail below
443-504-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FALLSTONNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-507 is split into 1,000-number blocks - detail below
443-507-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-512 is split into 1,000-number blocks - detail below
443-512-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-512-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-513 is split into 1,000-number blocks - detail below
443-513-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-513-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-513-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-516 is split into 1,000-number blocks - detail below
443-516-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-533 is split into 1,000-number blocks - detail below
443-533-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-533-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-549 is split into 1,000-number blocks - detail below
443-549-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-559 is split into 1,000-number blocks - detail below
443-559-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-572 is split into 1,000-number blocks - detail below
443-572-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-576 is split into 1,000-number blocks - detail below
443-576-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-577 is split into 1,000-number blocks - detail below
443-577-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-581 is split into 1,000-number blocks - detail below
443-581-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-581-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-581-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-582 is split into 1,000-number blocks - detail below
443-582-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-582-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-582-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-582-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-586MDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKBLTMMD91GT000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-586 is split into 1,000-number blocks - detail below
443-586-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKBLTMMD91GT010/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-586-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKBLTMMD91GT010/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-586-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKBLTMMD91GT010/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-587 is split into 1,000-number blocks - detail below
443-587-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-587-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-587-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EDGEWOODNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-588 is split into 1,000-number blocks - detail below
443-588-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-592MDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGEBLTMMD91GT000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-592 is split into 1,000-number blocks - detail below
443-592-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGEBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-592-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGEBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-592-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGEBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-596MDCORE COMMUNICATIONS, INC.- MDN/A2593ESSEXBLTMMD91GT000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-596 is split into 1,000-number blocks - detail below
443-596-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ESSEXBLTMMD91GT004/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
443-626 is split into 1,000-number blocks - detail below
443-626-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-628MDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIEBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-628 is split into 1,000-number blocks - detail below
443-628-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIEBLTMMDCHYMD04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-628-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIEBLTMMDCHYMD04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-628-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIEBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-628-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIEBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-628-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIEBLTMMDCHYMD05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-644 is split into 1,000-number blocks - detail below
443-644-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-644-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-644-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-644-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-644-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-645 is split into 1,000-number blocks - detail below
443-645-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MILLERSVLNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-647 is split into 1,000-number blocks - detail below
443-647-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-647-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-649 is split into 1,000-number blocks - detail below
443-649-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARROWSPTNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-650 is split into 1,000-number blocks - detail below
443-650-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-650-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-662 is split into 1,000-number blocks - detail below
443-662-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARKSGLNCNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-662-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SPARKSGLNCNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-663 is split into 1,000-number blocks - detail below
443-663-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-665MDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKESLBRMD90DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-665 is split into 1,000-number blocks - detail below
443-665-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKESLBRMD90DS005/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-665-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKESLBRMD90DS005/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-665-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKESLBRMD90DS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-665-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NANTICOKESLBRMD90DS005/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-666 is split into 1,000-number blocks - detail below
443-666-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESTERTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-671 is split into 1,000-number blocks - detail below
443-671-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-672 is split into 1,000-number blocks - detail below
443-672-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKTONNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-672-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKTONNOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-674 is split into 1,000-number blocks - detail below
443-674-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTH EASTNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-674-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTH EASTNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-675 is split into 1,000-number blocks - detail below
443-675-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RANDALLSTNNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-678 is split into 1,000-number blocks - detail below
443-678-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-678-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-678-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-686 is split into 1,000-number blocks - detail below
443-686-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FALLSTONNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-686-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593FALLSTONNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-688 is split into 1,000-number blocks - detail below
443-688-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-696 is split into 1,000-number blocks - detail below
443-696-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKNOCLLIKNOWN10/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-705 is split into 1,000-number blocks - detail below
443-705-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COCKEYSVLNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-719 is split into 1,000-number blocks - detail below
443-719-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-719-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-719-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-719-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593JARRETTSVLNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-727 is split into 1,000-number blocks - detail below
443-727-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BISHOPVLNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-727-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BISHOPVLNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-728 is split into 1,000-number blocks - detail below
443-728-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-728-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-728-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-728-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-728-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-728-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BERLINNOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-729 is split into 1,000-number blocks - detail below
443-729-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-732 is split into 1,000-number blocks - detail below
443-732-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SILVER RUNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-733 is split into 1,000-number blocks - detail below
443-733-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-737 is split into 1,000-number blocks - detail below
443-737-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-737-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-746 is split into 1,000-number blocks - detail below
443-746-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-746-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593EASTONNOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-747MDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91DS102/22/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS1))
🕘 Prefix History
🔎 Explore Carrier Information
443-747 is split into 1,000-number blocks - detail below
443-747-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91DS103/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS1))
🕘 Prefix History
🔎 Explore Carrier Information
443-747-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91DS1N/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS1))
🕘 Prefix History
🔎 Explore Carrier Information
443-748 is split into 1,000-number blocks - detail below
443-748-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MILLERSVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-748-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593MILLERSVLNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-751 is split into 1,000-number blocks - detail below
443-751-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-763 is split into 1,000-number blocks - detail below
443-763-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-767 is split into 1,000-number blocks - detail below
443-767-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-767-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WORTHINGTNNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-773 is split into 1,000-number blocks - detail below
443-773-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRYNPKLNCMNOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-773-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRYNPKLNCMNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-774 is split into 1,000-number blocks - detail below
443-774-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-774-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-774-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-774-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-777 is split into 1,000-number blocks - detail below
443-777-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-781 is split into 1,000-number blocks - detail below
443-781-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARGRGBSNISNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-782 is split into 1,000-number blocks - detail below
443-782-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISNOCLLIKNOWN10/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-782-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISNOCLLIKNOWN03/13/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-782-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISNOCLLIKNOWN10/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-793 is split into 1,000-number blocks - detail below
443-793-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-793-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-793-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-796 is split into 1,000-number blocks - detail below
443-796-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-815 is split into 1,000-number blocks - detail below
443-815-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-816 is split into 1,000-number blocks - detail below
443-816-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-816-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-816-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-816-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN04/05/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-836 is split into 1,000-number blocks - detail below
443-836-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-836-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-836-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-836-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-843 is split into 1,000-number blocks - detail below
443-843-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAVREGRACENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-843-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAVREGRACENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-856MDCORE COMMUNICATIONS, INC.- MDN/A2593OCEAN CITYSLBRMDFSDS007/02/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMDFSDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-856 is split into 1,000-number blocks - detail below
443-856-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OCEAN CITYSLBRMDFSDS007/15/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMDFSDS0))
🕘 Prefix History
🔎 Explore Carrier Information
443-859 is split into 1,000-number blocks - detail below
443-859-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-879 is split into 1,000-number blocks - detail below
443-879-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DUNDALKNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-881 is split into 1,000-number blocks - detail below
443-881-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-892 is split into 1,000-number blocks - detail below
443-892-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-893 is split into 1,000-number blocks - detail below
443-893-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-893-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-893-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-893-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WOODLAWNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-897 is split into 1,000-number blocks - detail below
443-897-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-898 is split into 1,000-number blocks - detail below
443-898-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PIKESVILLENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-899 is split into 1,000-number blocks - detail below
443-899-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-899-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WATERLO238NOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-912MDCORE COMMUNICATIONS, INC.- MDN/A2593TOWSONBLTMMD91DS107/02/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS1))
🕘 Prefix History
🔎 Explore Carrier Information
443-912 is split into 1,000-number blocks - detail below
443-912-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TOWSONBLTMMD91DS107/15/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS1))
🕘 Prefix History
🔎 Explore Carrier Information
443-918 is split into 1,000-number blocks - detail below
443-918-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TANEYTOWNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-920 is split into 1,000-number blocks - detail below
443-920-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-920-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-920-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SYKESVILLENOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-933 is split into 1,000-number blocks - detail below
443-933-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COCKEYSVLNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-933-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COCKEYSVLNOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-936 is split into 1,000-number blocks - detail below
443-936-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-936-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGENOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-936-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKRIDGENOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-937 is split into 1,000-number blocks - detail below
443-937-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593UNION BDGNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-937-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593UNION BDGNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-946MDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLEBLTMMDCHYMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-946 is split into 1,000-number blocks - detail below
443-946-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLEBLTMMDCHYMD04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-946-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLEBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-946-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLEBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-946-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLEBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-946-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PARKVILLEBLTMMDCHYMD10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHYMD))
🕘 Prefix History
🔎 Explore Carrier Information
443-963 is split into 1,000-number blocks - detail below
443-963-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/01/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-971 is split into 1,000-number blocks - detail below
443-971-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593TANEYTOWNNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-972 is split into 1,000-number blocks - detail below
443-972-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGENOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
443-972-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGENOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-215 is split into 1,000-number blocks - detail below
667-215-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-215-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-215-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-221 is split into 1,000-number blocks - detail below
667-221-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-222 is split into 1,000-number blocks - detail below
667-222-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-222-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223 is split into 1,000-number blocks - detail below
667-223-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-223-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-226 is split into 1,000-number blocks - detail below
667-226-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STMICHAELSNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-226-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STMICHAELSNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-226-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STMICHAELSNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-226-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STMICHAELSNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-226-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STMICHAELSNOCLLIKNOWN03/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-227 is split into 1,000-number blocks - detail below
667-227-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-227-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-227-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-227-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-227-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-227-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-230 is split into 1,000-number blocks - detail below
667-230-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-230-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-232 is split into 1,000-number blocks - detail below
667-232-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-232-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-232-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-232-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-232-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENBURNIENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-235 is split into 1,000-number blocks - detail below
667-235-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-235-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-235-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-235-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-235-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-235-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-235-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-236MDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236 is split into 1,000-number blocks - detail below
667-236-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-236-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PERRYVILLEBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237MDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT006/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237 is split into 1,000-number blocks - detail below
667-237-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-237-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-238MDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-238 is split into 1,000-number blocks - detail below
667-238-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-238-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-238-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-238-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONESTNMDBNGT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-238-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONESTNMDBNGT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-238-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PRESTONESTNMDBNGT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-241MDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-241 is split into 1,000-number blocks - detail below
667-241-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-241-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-241-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-241-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYESTNMDBNGT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-241-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYESTNMDBNGT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-241-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593RIDGELYESTNMDBNGT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242MDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242 is split into 1,000-number blocks - detail below
667-242-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-242-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ROCK HALLESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243MDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243 is split into 1,000-number blocks - detail below
667-243-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-243-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593OXFORDESTNMDBNGT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-244MDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-244 is split into 1,000-number blocks - detail below
667-244-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-244-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-244-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-244-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-244-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-244-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STILL PONDESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245MDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245 is split into 1,000-number blocks - detail below
667-245-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-245-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CECILTONESTNMDBNGT002/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246MDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246 is split into 1,000-number blocks - detail below
667-246-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT010/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT010/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT010/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT010/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT010/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT010/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-246-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CENTREVLESTNMDBNGT010/09/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247MDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247 is split into 1,000-number blocks - detail below
667-247-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT002/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT002/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT002/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT002/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-247-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESAPKECYESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248MDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248 is split into 1,000-number blocks - detail below
667-248-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-248-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DENTONESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-249MDCORE COMMUNICATIONS, INC.- MDN/A2593GALENAESTNMDBNGT006/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-249 is split into 1,000-number blocks - detail below
667-249-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GALENAESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-249-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GALENAESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-249-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GALENAESTNMDBNGT006/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-249-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GALENAESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-249-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GALENAESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-252 is split into 1,000-number blocks - detail below
667-252-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-252-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-252-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-252-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-252-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-252-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-252-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-253 is split into 1,000-number blocks - detail below
667-253-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-253-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-253-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-253-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-253-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-254MDCORE COMMUNICATIONS, INC.- MDN/A2593CHESTERTNSLBRMD90DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
667-254 is split into 1,000-number blocks - detail below
667-254-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESTERTNSLBRMD90DS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
667-254-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESTERTNSLBRMD90DS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
667-254-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESTERTNSLBRMD90DS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
667-254-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHESTERTNSLBRMD90DS004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: SLBRMD90DS0))
🕘 Prefix History
🔎 Explore Carrier Information
667-255 is split into 1,000-number blocks - detail below
667-255-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HILLSBORONOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-255-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HILLSBORONOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-255-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HILLSBORONOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-255-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HILLSBORONOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-257 is split into 1,000-number blocks - detail below
667-257-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-257-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIANOCLLIKNOWN06/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258 is split into 1,000-number blocks - detail below
667-258-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-258-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-259 is split into 1,000-number blocks - detail below
667-259-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-259-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-259-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-259-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-259-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-259-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-259-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-264 is split into 1,000-number blocks - detail below
667-264-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-264-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-264-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-264-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-264-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-264-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DELMARNOCLLIKNOWN05/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-266 is split into 1,000-number blocks - detail below
667-266-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-266-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-266-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-266-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-266-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-267MDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/22/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267 is split into 1,000-number blocks - detail below
667-267-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-267-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269MDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269 is split into 1,000-number blocks - detail below
667-269-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-269-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277MDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT005/31/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277 is split into 1,000-number blocks - detail below
667-277-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT010/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-277-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SHERWD FORBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-281 is split into 1,000-number blocks - detail below
667-281-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-285 is split into 1,000-number blocks - detail below
667-285-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HURLOCKNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-285-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HURLOCKNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-285-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HURLOCKNOCLLIKNOWN05/24/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-285-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HURLOCKNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-295MDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-295 is split into 1,000-number blocks - detail below
667-295-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-295-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-295-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-295-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-295-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-300MDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-300 is split into 1,000-number blocks - detail below
667-300-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-300-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-300-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593COLUMBIABLTMMD91GT006/05/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-307 is split into 1,000-number blocks - detail below
667-307-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CROFTONNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-312 is split into 1,000-number blocks - detail below
667-312-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-312-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-326MDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLESTNMDBNGT012/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-326 is split into 1,000-number blocks - detail below
667-326-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLESTNMDBNGT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-326-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLESTNMDBNGT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-326-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLESTNMDBNGT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-326-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLESTNMDBNGT004/18/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-326-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLESTNMDBNGT004/18/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-326-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHHILLESTNMDBNGT004/18/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332MDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332 is split into 1,000-number blocks - detail below
667-332-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-332-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NEWWINDSORBLTMMD91GT007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-333 is split into 1,000-number blocks - detail below
667-333-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-333-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-336MDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336 is split into 1,000-number blocks - detail below
667-336-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT004/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-336-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BEL AIRBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-344 is split into 1,000-number blocks - detail below
667-344-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-344-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-344-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-344-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-344-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-344-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-344-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHASENOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-345MDCORE COMMUNICATIONS, INC.- MDN/A2593CATONSVLBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-345 is split into 1,000-number blocks - detail below
667-345-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CATONSVLBLTMMD91GT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-345-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CATONSVLBLTMMD91GT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-345-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CATONSVLBLTMMD91GT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362MDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362 is split into 1,000-number blocks - detail below
667-362-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-362-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364MDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364 is split into 1,000-number blocks - detail below
667-364-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-364-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593STEVENSVLESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366MDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366 is split into 1,000-number blocks - detail below
667-366-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT002/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-366-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593HAMPSTEADBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-372MDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNGT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-372 is split into 1,000-number blocks - detail below
667-372-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-372-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-372-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-372-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-372-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-372-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CAMBRIDGEESTNMDBNGT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373MDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373 is split into 1,000-number blocks - detail below
667-373-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-373-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593NORTHBEACHBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382MDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT010/16/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382 is split into 1,000-number blocks - detail below
667-382-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT005/22/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT005/22/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT005/22/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-382-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WINGATEESTNMDBNGT005/22/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-444 is split into 1,000-number blocks - detail below
667-444-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-473MDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT010/16/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473 is split into 1,000-number blocks - detail below
667-473-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-473-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SOLOMONSBLTMMD91GT006/10/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500MDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT006/01/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500 is split into 1,000-number blocks - detail below
667-500-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-500-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-545MDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKESTNMDBNGT010/16/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-545 is split into 1,000-number blocks - detail below
667-545-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-545-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-545-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-545-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-545-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKESTNMDBNGT007/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-545-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WARWICKESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627MDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627 is split into 1,000-number blocks - detail below
667-627-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-627-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-653MDCORE COMMUNICATIONS, INC.- MDN/A2593BRYNPKLNCMBLTMMD91GT012/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-653 is split into 1,000-number blocks - detail below
667-653-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRYNPKLNCMBLTMMD91GT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-653-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRYNPKLNCMBLTMMD91GT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-653-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BRYNPKLNCMBLTMMD91GT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-666 is split into 1,000-number blocks - detail below
667-666-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593WEST RIVERNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-677 is split into 1,000-number blocks - detail below
667-677-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-677-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-677-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-686MDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-686 is split into 1,000-number blocks - detail below
667-686-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-686-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-686-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-686-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-686-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-686-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELLICOTTCYBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-706 is split into 1,000-number blocks - detail below
667-706-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ELKTONNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-722MDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722 is split into 1,000-number blocks - detail below
667-722-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-722-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593GLENWOODBLTMMD91GT007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727MDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT010/16/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727 is split into 1,000-number blocks - detail below
667-727-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-727-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SUDLERSVLESTNMDBNGT003/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-777 is split into 1,000-number blocks - detail below
667-777-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SEVERNA PKNOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-837MDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91GT010/16/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-837 is split into 1,000-number blocks - detail below
667-837-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-837-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-837-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-837-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593PT DEPOSITBLTMMD91GT007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-843MDCORE COMMUNICATIONS, INC.- MDN/A2593DEALISLANDESTNMDBNGT012/10/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-843 is split into 1,000-number blocks - detail below
667-843-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DEALISLANDESTNMDBNGT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-843-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DEALISLANDESTNMDBNGT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-843-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DEALISLANDESTNMDBNGT012/12/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: ESTNMDBNGT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-855 is split into 1,000-number blocks - detail below
667-855-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-855-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-855-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593SALISBURYNOCLLIKNOWN07/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Salisbury MD (242)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-866MDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT006/04/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866 is split into 1,000-number blocks - detail below
667-866-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT006/06/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-866-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593DARLINGTONBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-867 is split into 1,000-number blocks - detail below
667-867-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-867-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-867-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-867-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-867-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-867-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-867-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593BALTIMORENOCLLIKNOWN10/11/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
🕘 Prefix History
🔎 Explore Carrier Information
667-876MDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/18/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876 is split into 1,000-number blocks - detail below
667-876-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-876-9XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593ANNAPOLISBLTMMD91GT010/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946MDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT010/15/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946 is split into 1,000-number blocks - detail below
667-946-0XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-1XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-2XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-3XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-4XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-5XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-6XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT003/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-7XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT010/17/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
667-946-8XXXMDCORE COMMUNICATIONS, INC.- MDN/A2593CHURCHVLBLTMMD91GT007/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91GT0))
🕘 Prefix History
🔎 Explore Carrier Information
This information is not guaranteed to be accurate. User assumes all risk for any loss or gain resulting from use of this data.
Although I strive for accuracy and prompt updates of changed information, it is possible that there may be errors. If you see one, could you please report it?
Please report all errors, flames, questions, suggestions, and thanks to Paul Timmins
L'exactitude de ces renseignements n'est pas garantie. L'utilisateur assume l'entière responsabilité des pertes ou des gains découlant de l'utilisation de ces données.
Bien que je m'efforce d'assurer l'exactitude des informations et de les mettre à jour rapidement, des erreurs peuvent subsister. Si vous en voyez une, veuillez me la signaler.
Veuillez adresser vos commentaires, remarques, questions, suggestions et remerciements à Paul Timmins
Please see the Frequently Asked Questions page if you have any questions.
Copyright ©2001-2026, Paul Timmins/Timmins Technologies, LLC. All rights reserved
Website Design and User Interface ©2010, Adam Botbyl/Revolutionary Solutions, LLC.
Colocation generously provided by Clear Rate Communications, Inc
Has this site changed your life? Made your job easier? I always love Fanmail and Suggestions.