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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-939MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS000/00/0000Prefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS000/00/0000Prefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-942
410-942-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-2MDATX TELECOMMUNICATIONS SERVICE1958HAVREGRACENOCLLIKNOWN02/27/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-3MDCORE COMMUNICATIONS, INC.- MD2593HAVREGRACENOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-4MDVDL, INC. DBA GLOBAL TELECOM B4492HAVREGRACENOCLLIKNOWN01/21/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-5MDCOMCAST IP PHONE, LLC318JHAVREGRACENOCLLIKNOWN09/24/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-6MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119HAVREGRACENOCLLIKNOWN08/27/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-942-9MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119HAVREGRACENOCLLIKNOWN02/06/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209MDCAVALIER TELEPHONE, LLC (MID-A (Windstream Communications)7944HAVREGRACEBLARMDBL1MD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-209
443-209-0MDCAVALIER TELEPHONE, LLC (MID-A (Windstream Communications)7944HAVREGRACEBLARMDBL1MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-1MDCAVALIER TELEPHONE, LLC (MID-A (Windstream Communications)7944HAVREGRACEBLARMDBL1MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-2MDTWILIO INTERNATIONAL, INC.506JHAVREGRACENOCLLIKNOWN11/30/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-3MDCAVALIER TELEPHONE, LLC (MID-A (Windstream Communications)7944HAVREGRACEBLARMDBL1MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-4MDCAVALIER TELEPHONE, LLC (MID-A (Windstream Communications)7944HAVREGRACEBLARMDBL1MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-5MDLIGHTWAVE COMMUNICATIONS, LLC 5966HAVREGRACENOCLLIKNOWN09/08/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-6MDCOMCAST IP PHONE, LLC318JHAVREGRACENOCLLIKNOWN09/24/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-7MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228HAVREGRACEBLTOMDKHDS012/09/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-8MDCAVALIER TELEPHONE, LLC (MID-A (Windstream Communications)7944HAVREGRACEBLARMDBL1MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-209-9MDCAVALIER TELEPHONE, LLC (MID-A (Windstream Communications)7944HAVREGRACEBLARMDBL1MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325HAVREGRACEBLTMMDFMDS000/00/0000Prefix 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 443-502
443-502-0MDBANDWIDTH.COM CLEC, LLC - MD071FHAVREGRACENOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-1MDUS LEC OF MARYLAND, INC.2589HAVREGRACECLMAMDJTDS001/15/2004Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-2MDCOMCAST IP PHONE, LLC318JHAVREGRACENOCLLIKNOWN02/11/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-3MDCORE COMMUNICATIONS, INC.- MD2593HAVREGRACENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-4MDCORE COMMUNICATIONS, INC.- MD2593HAVREGRACENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-5MDCOMCAST IP PHONE, LLC318JHAVREGRACENOCLLIKNOWN06/19/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-6MDBANDWIDTH.COM CLEC, LLC - MD071FHAVREGRACENOCLLIKNOWN09/28/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JHAVREGRACEBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-8MDCOMCAST IP PHONE, LLC318JHAVREGRACENOCLLIKNOWN02/12/2002Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-502-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325HAVREGRACEBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697HAVREGRACEBLTMMDCH14Z00/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-526
443-526-0MDBANDWIDTH.COM CLEC, LLC - MD071FHAVREGRACENOCLLIKNOWN05/03/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-1MDBANDWIDTH.COM CLEC, LLC - MD071FHAVREGRACENOCLLIKNOWN01/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-2MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697HAVREGRACEBLTMMDCH14ZN/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-3MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN02/25/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-4MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN02/25/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-5MDTELNYX LLC073HHAVREGRACENOCLLIKNOWN04/14/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-6MDCOMCAST IP PHONE, LLC318JHAVREGRACENOCLLIKNOWN07/30/2015Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-7MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN07/16/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-8MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN07/16/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-526-9MDBALTIMORE-WASHINGTON TELEPHONE8697HAVREGRACENOCLLIKNOWN05/20/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS000/00/0000Prefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-843
443-843-0MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN09/11/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-1MDPEERLESS NETWORK OF MARYLAND, 568GHAVREGRACENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-2MDPEERLESS NETWORK OF MARYLAND, 568GHAVREGRACENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-3MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697HAVREGRACENOCLLIKNOWN12/06/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-4MDCORE COMMUNICATIONS, INC.- MD2593HAVREGRACENOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-6MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212HAVREGRACEHDGRMDHVDS0N/APrefix Type: RBOC
Switch Name: HAVRE DE GRACE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-843-9MDCORE COMMUNICATIONS, INC.- MD2593HAVREGRACENOCLLIKNOWN03/14/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-466MDTON80 COMMUNICATIONS, LLC516JHAVREGRACEBLTQMD01BMD02/24/2022Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-466
667-466-3MDTON80 COMMUNICATIONS, LLC516JHAVREGRACEBLTQMD01BMD02/24/2022Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-466-6MDTERRA NOVA TELECOM INC.145JHAVREGRACENOCLLIKNOWN03/11/2022Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567MDRADIANTIQ LLC566JHAVREGRACEPIVLMDPKX8X03/25/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-567
667-567-0MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN03/31/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-1MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN03/31/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-2MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN08/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-3MDBANDWIDTH.COM CLEC, LLC - MD071FHAVREGRACENOCLLIKNOWN12/02/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-4MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN04/21/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-5MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN04/21/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-6MDRADIANTIQ LLC566JHAVREGRACEPIVLMDPKX8X03/26/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-7MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN04/21/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-8MDONVOY, LLC - MD (Inteliquent)876DHAVREGRACENOCLLIKNOWN04/21/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-567-9MDONVOY SPECTRUM, LLC (Inteliquent)624HHAVREGRACENOCLLIKNOWN04/23/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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