Input an Area Code (required) followed by the Prefix, or Exchange (optional):
-
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.
npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
443-731MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325PT DEPOSITBLTMMDFMDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-731
443-731-0MDCORE COMMUNICATIONS, INC.- MD2593PT DEPOSITNOCLLIKNOWN06/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-1MDARMSTRONG TELECOMMUNICATIONS, 420CPT DEPOSITNOCLLIKNOWN06/02/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-2MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119PT DEPOSITNOCLLIKNOWN02/08/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-3MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119PT DEPOSITNOCLLIKNOWN11/07/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-4MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228PT DEPOSITBLTOMDKHDS007/10/2017Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-5MDONVOY, LLC - MD (Inteliquent)876DPT DEPOSITNOCLLIKNOWN05/21/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-6MDBANDWIDTH.COM CLEC, LLC - MD071FPT DEPOSITNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-7MDHD CARRIER LLC321JPT DEPOSITNOCLLIKNOWN04/20/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-8MDCORE COMMUNICATIONS, INC.- MD2593PT DEPOSITNOCLLIKNOWN06/13/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-731-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325PT DEPOSITBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Member of The Internet Defense League