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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-238MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-238
410-238-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-4MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-6MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-238-9MDBALTIMORE-WASHINGTON TELEPHONE8697ESSEXNOCLLIKNOWN05/18/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-391MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ESSEXBLTOMDKHDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-406
410-406-0MDVDL, INC. DBA GLOBAL TELECOM B4492ESSEXNOCLLIKNOWN10/17/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-1MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN02/23/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-2MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT003/23/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-3MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591ESSEXNOCLLIKNOWN05/03/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-4MDBARR TELL USA, INC.964HESSEXNOCLLIKNOWN11/18/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-5MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-6MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN05/22/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-7MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN10/20/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-8MDATX TELECOMMUNICATIONS SERVICE1958ESSEXNOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-406-9MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ESSEXBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-574MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-682
410-682-0MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXNOCLLIKNOWNN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-1MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXNOCLLIKNOWNN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-4MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-6MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-7MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-682-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-686MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-687MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-780MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-866MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXBLTMMDFRDS000/00/0000Prefix Type: RBOC
Switch Name: FRANKFORD
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-918
410-918-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-4MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-6MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXNOCLLIKNOWNN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-7MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT004/28/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-8MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT004/28/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-918-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXBLTMMDCHCMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-231
443-231-0MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ESSEXNOCLLIKNOWN02/01/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-1MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697ESSEXNOCLLIKNOWN04/04/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-2MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXBLTMMDCHCMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-3MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ESSEXNOCLLIKNOWN03/29/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-4MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ESSEXNOCLLIKNOWN01/27/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-5MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX02/11/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-6MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX05/22/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-7MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX05/22/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-8MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/26/2006Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-231-9MDLOCAL ACCESS LLC - MD082HESSEXNOCLLIKNOWN05/03/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-460
443-460-0MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-1MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-2MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-3MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-4MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-5MDTERRA NOVA TELECOM INC.145JESSEXNOCLLIKNOWN12/30/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-6MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-7MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-8MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/03/2008Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-460-9MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ESSEXBLTOMDXIDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-505
443-505-0MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ESSEXBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-1MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ESSEXBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-2MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ESSEXNOCLLIKNOWN12/01/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-3MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX03/10/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-4MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ESSEXBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-5MDTWILIO INTERNATIONAL, INC.506JESSEXNOCLLIKNOWN11/30/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-6MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN09/19/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-7MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ESSEXNOCLLIKNOWN05/06/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-8MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX08/28/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-505-9MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY09/10/2019Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-559
443-559-0MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFXN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-1MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY01/08/2008Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-2MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY02/02/2007Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-3MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-4MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN03/30/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-5MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX10/01/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-6MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX10/01/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-7MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY05/19/2008Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-8MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX06/04/2008Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-559-9MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX06/04/2008Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS000/00/0000Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-579
443-579-0MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-1MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-2MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-3MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-4MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN05/28/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-5MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-6MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY06/17/2008Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-7MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN09/28/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-8MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN01/31/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-579-9MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDSNDS500/00/0000Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-596
443-596-0MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-1MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/25/2020Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-2MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-3MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX07/17/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-4MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT009/21/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-5MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT009/21/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-6MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN04/30/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-7MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT005/11/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-8MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX09/04/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-596-9MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/23/2001Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-600
443-600-0MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWYN/APrefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-1MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWYN/APrefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-2MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/21/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-3MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/18/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-4MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY09/12/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-5MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY12/27/2005Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-6MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWYN/APrefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-7MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/02/2006Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-8MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY04/10/2006Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-600-9MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWYN/APrefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXBLTMMDFMDS000/00/0000Prefix 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 443-648
443-648-0MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT011/09/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-1MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT007/26/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-2MDUS LEC OF MARYLAND, INC.2589ESSEXCLMAMDJTDS005/17/2007Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-3MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN06/07/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-4MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ESSEXBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-5MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN01/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-6MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/17/2015Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JESSEXBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-8MDLOCAL ACCESS LLC - MD082HESSEXNOCLLIKNOWN08/12/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-648-9MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN09/11/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ESSEXBLTMMDCHW2900/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-730
443-730-0MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ESSEXBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-1MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ESSEXBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-2MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ESSEXBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-3MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/15/2015Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-4MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/15/2015Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-5MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN12/15/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-6MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX03/11/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-7MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN03/11/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-8MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ESSEXBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-730-9MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ESSEXBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMD07/23/2001Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-772
443-772-0MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-1MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-2MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-3MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-4MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-5MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/28/2020Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-6MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/28/2020Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-7MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-8MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-772-9MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS000/00/0000Prefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-777
443-777-0MDTELNYX LLC073HESSEXNOCLLIKNOWN03/02/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-4MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-6MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXESSXMDEXDS0N/APrefix Type: RBOC
Switch Name: ESSEX
Switch Type: Northern Telecom DMS10S
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-777-9MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDSN5MD00/00/0000Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-815
443-815-0MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-1MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY10/13/2014Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-2MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-3MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX09/09/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-4MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN10/08/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-5MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-6MDXO MARYLAND, LLC (Verizon Communications)4773ESSEXBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-7MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN10/08/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-8MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY09/10/2014Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-815-9MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY10/13/2014Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXBLTMMDFRDS000/00/0000Prefix Type: RBOC
Switch Name: FRANKFORD
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-868
443-868-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212ESSEXBLTMMDFRDS0N/APrefix Type: RBOC
Switch Name: FRANKFORD
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-1MDPEERLESS NETWORK OF MARYLAND, 568GESSEXNOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-2MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN08/07/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-3MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ESSEXBLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-4MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/31/2016Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-5MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY03/31/2016Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-6MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697ESSEXNOCLLIKNOWN10/11/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-7MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX06/24/2015Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-8MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY02/17/2015Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-868-9MDPEERLESS NETWORK OF MARYLAND, 568GESSEXNOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMD05/11/2001Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-969
443-969-0MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-1MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT011/19/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-2MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX11/29/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-3MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-4MDCOMCAST IP PHONE, LLC318JESSEXBLTMMDCHXFX11/29/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-5MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY01/06/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-6MDCORE COMMUNICATIONS, INC.- MD2593ESSEXNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-7MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN10/01/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-8MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN10/01/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-969-9MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ESSEXHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXBLTMMDCH45Z02/22/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-304
667-304-0MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXBLTMMDCH45Z02/23/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-1MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT003/02/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-2MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT006/22/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-3MDONVOY SPECTRUM, LLC (Inteliquent)624HESSEXNOCLLIKNOWN04/23/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-4MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN06/15/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-5MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN06/15/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-6MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT009/07/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-7MDMCIMETRO ACCESS TRANSMISSION S7229ESSEXNOCLLIKNOWN06/30/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-8MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY04/01/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-304-9MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY05/07/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT006/23/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-328
667-328-0MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/14/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-1MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY07/14/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-2MDONVOY, LLC - MD (Inteliquent)876DESSEXNOCLLIKNOWN08/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-3MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY10/06/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-4MDONVOY SPECTRUM, LLC (Inteliquent)624HESSEXNOCLLIKNOWN12/16/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-5MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY12/02/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-6MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY12/02/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-7MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCHXWY12/02/2021Prefix Type: PCS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-8MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT006/23/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-328-9MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ESSEXCLMAMDORGT006/23/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCH40Z12/07/2021Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-378
667-378-0MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCH40Z05/17/2022Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-1MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCH40Z05/17/2022Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-2MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCH40Z05/17/2022Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-3MDTON80 COMMUNICATIONS, LLC516JESSEXNOCLLIKNOWN02/23/2022Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-4MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN08/04/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-5MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN08/04/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-6MDONVOY SPECTRUM, LLC (Inteliquent)624HESSEXNOCLLIKNOWN12/16/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-7MDBANDWIDTH.COM CLEC, LLC - MD071FESSEXNOCLLIKNOWN08/04/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-378-9MDOMNIPOINT COMMUNICATIONS CAP O (T-Mobile US, Inc)6855ESSEXBLTMMDCH40Z12/07/2021Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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