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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-255MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS000/00/0000Prefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228ARGRGBSNISBLTOMDKHDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-317
410-317-0MDONVOY SPECTRUM, LLC (Inteliquent)624HARGRGBSNISNOCLLIKNOWN12/08/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-1MDVDL, INC. DBA GLOBAL TELECOM BROKERS - MD4492ARGRGBSNISNOCLLIKNOWN01/21/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-2MDCORE COMMUNICATIONS, INC.- MD2593ARGRGBSNISNOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-3MDONVOY SPECTRUM, LLC (Inteliquent)624HARGRGBSNISNOCLLIKNOWN12/08/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-4MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228ARGRGBSNISBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-5MDCOMCAST IP PHONE, LLC318JARGRGBSNISNOCLLIKNOWN09/10/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-6MDBROADVIEW NETWORKS, INC. - MD (Windstream Holdings)9170ARGRGBSNISNOCLLIKNOWN12/23/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-7MDCORE COMMUNICATIONS, INC.- MD2593ARGRGBSNISNOCLLIKNOWN04/18/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-8MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISNOCLLIKNOWN04/28/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-317-9MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228ARGRGBSNISBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-360MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS000/00/0000Prefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-437MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS000/00/0000Prefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-439MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS000/00/0000Prefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305MDGLOBAL CROSSING LOCAL SERVICES, INC. - MD (CenturyLink, Inc)6050ARGRGBSNISBLTOMDXIDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-305
443-305-0MDGLOBAL CROSSING LOCAL SERVICES, INC. - MD (CenturyLink, Inc)6050ARGRGBSNISBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-1MDGLOBAL CROSSING LOCAL SERVICES, INC. - MD (CenturyLink, Inc)6050ARGRGBSNISBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-2MDCOMCAST IP PHONE, LLC318JARGRGBSNISNOCLLIKNOWN02/10/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-3MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISNOCLLIKNOWN04/28/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-4MDGLOBAL CROSSING LOCAL SERVICES, INC. - MD (CenturyLink, Inc)6050ARGRGBSNISBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-5MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN02/03/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-6MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISNOCLLIKNOWN05/06/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-7MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN08/22/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-8MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN05/28/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-305-9MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDSN5MD02/21/2001Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-637
443-637-0MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-1MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISNOCLLIKNOWN12/28/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-2MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN11/03/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-3MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-4MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISNOCLLIKNOWN01/27/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-5MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDSN5MDN/APrefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-6MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN09/12/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-7MDPEERLESS NETWORK OF MARYLAND, LLC568GARGRGBSNISNOCLLIKNOWN09/17/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-8MDPEERLESS NETWORK OF MARYLAND, LLC568GARGRGBSNISNOCLLIKNOWN09/17/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-637-9MDPEERLESS NETWORK OF MARYLAND, LLC568GARGRGBSNISNOCLLIKNOWN09/17/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702MDCAVALIER TELEPHONE MID-ATLANTIC, LLC - MD (Windstream Communications)3910ARGRGBSNISHNVAMDBHAMD05/10/2001Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-702
443-702-0MDCAVALIER TELEPHONE MID-ATLANTIC, LLC - MD (Windstream Communications)3910ARGRGBSNISHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-1MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN07/13/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-2MDCOMCAST IP PHONE, LLC318JARGRGBSNISNOCLLIKNOWN10/03/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-3MDCAVALIER TELEPHONE MID-ATLANTIC, LLC - MD (Windstream Communications)3910ARGRGBSNISHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-4MDUS LEC OF MARYLAND, INC.2589ARGRGBSNISCLMAMDJTDS005/17/2007Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-5MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN08/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-6MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN01/14/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-7MDCOMCAST IP PHONE, LLC318JARGRGBSNISNOCLLIKNOWN08/26/2008Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-8MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN08/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702-9MDIP HORIZON LLC515JARGRGBSNISNOCLLIKNOWN07/22/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS000/00/0000Prefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-770
443-770-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS0N/APrefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-1MDUS LEC OF MARYLAND, INC.2589ARGRGBSNISCLMAMDJTDS012/16/2003Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-2MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN05/04/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-3MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN05/04/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-4MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN09/12/2013Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS011/15/2005Prefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-6MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN08/07/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-7MDCENTURYLINK COMMUNICATIONS, LLC (CenturyLink, Inc)508JARGRGBSNISBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS0N/APrefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-770-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212ARGRGBSNISARMGMDARDS0N/APrefix Type: RBOC
Switch Name: ARMIGER-GIBSON ISLAND
Switch Type: WECO 5ESS (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDSNDS500/00/0000Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-781
443-781-0MDCORE COMMUNICATIONS, INC.- MD2593ARGRGBSNISNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-1MDONVOY SPECTRUM, LLC (Inteliquent)624HARGRGBSNISNOCLLIKNOWN01/12/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-2MDONVOY SPECTRUM, LLC (Inteliquent)624HARGRGBSNISNOCLLIKNOWN01/12/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-3MDCOMCAST IP PHONE, LLC318JARGRGBSNISNOCLLIKNOWN01/08/2018Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-4MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN03/21/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-5MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDSNDS502/03/2021Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-6MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDSNDS502/03/2021Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-7MDTWILIO INTERNATIONAL, INC.506JARGRGBSNISNOCLLIKNOWN11/25/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-8MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDSNDS502/06/2019Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-9MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDSNDS502/06/2019Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325ARGRGBSNISBLTMMDFMDS000/00/0000Prefix 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 443-784
443-784-0MDIP HORIZON LLC515JARGRGBSNISNOCLLIKNOWN08/12/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-1MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN12/29/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-2MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN04/11/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-3MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228ARGRGBSNISBLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-4MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325ARGRGBSNISBLTMMDFMDS010/21/2004Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-5MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN04/11/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-6MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN04/11/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-7MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN04/25/2013Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-8MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN07/12/2013Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784-9MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN12/29/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDCDDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-817
443-817-0MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-1MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-2MDCOMCAST IP PHONE, LLC318JARGRGBSNISNOCLLIKNOWN11/16/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-3MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN12/29/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-4MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-5MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-6MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-7MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN09/01/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-8MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN12/29/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-9MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC7229ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISBLTMMDSN6MD12/30/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-818
443-818-0MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN09/03/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-1MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN06/02/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-2MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN06/02/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-3MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN07/25/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-4MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN07/25/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-5MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISBLTMMDSN6MD01/04/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-6MDLEVEL 3 COMMUNICATIONS, LLC - MD (CenturyLink, Inc)6119ARGRGBSNISBLTMMDSN6MD01/04/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-7MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN09/03/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-8MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/28/2013Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-818-9MDBANDWIDTH.COM CLEC, LLC - MD071FARGRGBSNISNOCLLIKNOWN01/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z08/17/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-222
667-222-0MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z08/18/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-1MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z08/18/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-2MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z08/18/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-3MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z12/22/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-4MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z04/01/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-5MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z02/22/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-6MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISBLTMMDCH42Z04/18/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-7MDCORE COMMUNICATIONS, INC.- MD2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-8MDTELNYX LLC073HARGRGBSNISNOCLLIKNOWN04/13/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-222-9MDCORE COMMUNICATIONS, INC.- MD2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333MDBALTIMORE-WASHINGTON TELEPHONE (BWT)8697ARGRGBSNISBLTMMDCH25Z05/14/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-333
667-333-0MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN07/13/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-1MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN09/01/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-2MDTERRA NOVA TELECOM INC.145JARGRGBSNISNOCLLIKNOWN12/30/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-3MDBALTIMORE-WASHINGTON TELEPHONE (BWT)8697ARGRGBSNISBLTMMDCH25Z05/18/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-4MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN07/13/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-5MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN07/13/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-6MDCORE COMMUNICATIONS, INC.- MD2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-7MDCORE COMMUNICATIONS, INC.- MD2593ARGRGBSNISNOCLLIKNOWN05/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-8MDONVOY SPECTRUM, LLC (Inteliquent)624HARGRGBSNISNOCLLIKNOWN04/23/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-333-9MDIP HORIZON LLC515JARGRGBSNISNOCLLIKNOWN05/03/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413MDNUSO, LLC732JARGRGBSNISBLTMMDWLAMD08/16/2022Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-413
667-413-0MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN09/01/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-1MDNUSO, LLC732JARGRGBSNISBLTMMDWLAMD08/16/2022Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-2MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN07/13/2023Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-3MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/31/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-4MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/31/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-5MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/31/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-6MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/31/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-7MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/31/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-8MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/31/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413-9MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)4036ARGRGBSNISNOCLLIKNOWN10/31/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-474MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN03/20/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-474
667-474-0MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN03/20/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-474-1MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN03/20/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-474-2MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN03/20/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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