Rate Center Name: , State:
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
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 S (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 B4492ARGRGBSNISNOCLLIKNOWN01/21/2004Prefix 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 S (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 - (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 S (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 (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 (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 (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 - (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 (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 - (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
443-637MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDSN5MD02/21/2001Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-637
443-637-0MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDSN5MDN/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 - (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
443-637-3MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDSN5MDN/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 - (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
443-637-5MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDSN5MDN/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, 568GARGRGBSNISNOCLLIKNOWN09/17/2012Prefix 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, 568GARGRGBSNISNOCLLIKNOWN09/17/2012Prefix 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, 568GARGRGBSNISNOCLLIKNOWN09/17/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-702MDCAVALIER TELEPHONE MID-ATLANTI (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-ATLANTI (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 (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-ATLANTI (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 (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 (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, LL (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
443-781MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDSNDS500/00/0000Prefix 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)876DARGRGBSNISNOCLLIKNOWN02/03/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-6MDONVOY, 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
443-781-7MDTWILIO 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)876DARGRGBSNISNOCLLIKNOWN02/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-781-9MDONVOY, LLC - MD (Inteliquent)876DARGRGBSNISNOCLLIKNOWN02/06/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-784MDTELEPORT COMMUNICATIONS AMERIC (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
443-784-0MDLOCAL ACCESS LLC - MD082HARGRGBSNISNOCLLIKNOWN08/12/2013Prefix Type: CLEC
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 (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 (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 S (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 AMERIC (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 (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 (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 (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 (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 (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
443-817MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDCDDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-817
443-817-0MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-1MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDCDDS0N/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 (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
443-817-4MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-5MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-817-6MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDCDDS0N/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 (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 (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
443-817-9MDXO MARYLAND, LLC (Verizon Communications)4773ARGRGBSNISBLTMMDCDDS0N/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 - (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 (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 (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 (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 (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 (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 - (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 - (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 (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 (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: CLEC
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 TELEPHONE8697ARGRGBSNISBLTMMDCH25Z05/14/2015Prefix 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 (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 (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 TELEPHONE8697ARGRGBSNISBLTMMDCH25Z05/18/2015Prefix 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 (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 (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
667-333-9MDLOCAL ACCESS LLC - MD082HARGRGBSNISNOCLLIKNOWN05/03/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-413MDNUSO, LLC732JARGRGBSNISNOCLLIKNOWN08/16/2022Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-413
667-413-0MDNEW CINGULAR WIRELESS PCS, LLC (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, LLC732JARGRGBSNISNOCLLIKNOWN08/16/2022Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Member of The Internet Defense League