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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-239MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNHMPSMDHERS100/00/0000Prefix Type: RBOC
Switch Name: HAMPSTEAD
Switch Type: AT&T 5ESS-2000 VCDX
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS000/00/0000Prefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-517
410-517-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-4MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40Z06/14/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-6MDVDL, INC. DBA GLOBAL TELECOM B4492REISTERSTNNOCLLIKNOWN10/17/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-7MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN02/23/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-517-9MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40Z04/05/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-526MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS000/00/0000Prefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-702
410-702-0MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036REISTERSTNCLMAMDORGT006/30/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-1MDONVOY SPECTRUM, LLC (Inteliquent)624HREISTERSTNNOCLLIKNOWN04/24/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-2MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-3MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036REISTERSTNCLMAMDORGT006/30/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-4MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119REISTERSTNNOCLLIKNOWN07/29/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-5MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119REISTERSTNNOCLLIKNOWN01/05/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-6MDBROADVIEW NETWORKS, INC. - MD (Windstream Holdings)9170REISTERSTNNOCLLIKNOWN08/10/2009Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-7MDCOMCAST IP PHONE, LLC318JREISTERSTNNOCLLIKNOWN02/11/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-8MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/07/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-702-9MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-833MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNRSTWMDRSDS000/00/0000Prefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS000/00/0000Prefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-840
410-840-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-1MDTERRA NOVA TELECOM INC.145JREISTERSTNWMNSMDWMDS012/30/2020Prefix Type: IPES
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-4MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-6MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697REISTERSTNNOCLLIKNOWN11/16/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-7MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119REISTERSTNNOCLLIKNOWN12/05/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-840-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-876MDVERIZON MARYLAND, INC. (Verizon Communications)9212REISTERSTNWMNSMDWMDS000/00/0000Prefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325REISTERSTNCLMAMDNIDS100/00/0000Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-273
443-273-0MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325REISTERSTNCLMAMDNIDS1N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-1MDBANDWIDTH.COM CLEC, LLC - MD071FREISTERSTNNOCLLIKNOWN06/07/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-2MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN02/20/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-3MDCOMCAST IP PHONE, LLC318JREISTERSTNNOCLLIKNOWN08/28/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-4MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/04/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-5MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN09/12/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-6MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/04/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JREISTERSTNBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-8MDLOCAL ACCESS LLC - MD082HREISTERSTNNOCLLIKNOWN12/07/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-273-9MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325REISTERSTNCLMAMDNIDS1N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036REISTERSTNCLMAMDORGT000/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-381
443-381-0MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN08/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-1MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/19/2019Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-2MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036REISTERSTNCLMAMDORGT012/20/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-3MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036REISTERSTNCLMAMDORGT010/27/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-4MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036REISTERSTNCLMAMDORGT010/27/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-5MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD02/20/2018Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-6MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-7MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-8MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD01/15/2018Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-381-9MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036REISTERSTNCLMAMDORGT003/06/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716REISTERSTNBLTMMDCHW2900/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-522
443-522-0MDBANDWIDTH.COM CLEC, LLC - MD071FREISTERSTNNOCLLIKNOWN09/28/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-1MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD05/22/2013Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-2MDCOMCAST IP PHONE, LLC318JREISTERSTNNOCLLIKNOWN04/27/2012Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-3MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/17/2013Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-4MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD03/03/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-5MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD03/03/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-6MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD07/23/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-7MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD07/23/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-8MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD11/07/2014Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-522-9MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716REISTERSTNBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050REISTERSTNBLTOMDXIDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-590
443-590-0MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050REISTERSTNBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-1MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050REISTERSTNBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-2MDONVOY SPECTRUM, LLC (Inteliquent)624HREISTERSTNNOCLLIKNOWN08/11/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-3MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119REISTERSTNNOCLLIKNOWN12/05/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-4MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050REISTERSTNBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-5MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-6MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD11/02/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-7MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN02/23/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-8MDBARR TELL USA, INC.964HREISTERSTNNOCLLIKNOWN11/18/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-590-9MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN02/23/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650MDXO MARYLAND, LLC (Verizon Communications)4773REISTERSTNBLTMMDCDDS002/20/2001Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-650
443-650-0MDXO MARYLAND, LLC (Verizon Communications)4773REISTERSTNBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-1MDXO MARYLAND, LLC (Verizon Communications)4773REISTERSTNBLTMMDCDDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-2MDLOCAL ACCESS LLC - MD082HREISTERSTNNOCLLIKNOWN09/15/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-3MDBANDWIDTH.COM CLEC, LLC - MD071FREISTERSTNNOCLLIKNOWN08/09/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-4MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD08/13/2020Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-5MDUS LEC OF MARYLAND, INC.2589REISTERSTNCLMAMDJTDS002/07/2003Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-6MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-7MDTELNYX LLC073HREISTERSTNNOCLLIKNOWN04/13/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-8MDBANDWIDTH.COM CLEC, LLC - MD071FREISTERSTNNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-650-9MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910REISTERSTNHNVAMDBHAMD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-712
443-712-0MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910REISTERSTNHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-1MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN03/28/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-2MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910REISTERSTNHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-3MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD01/03/2017Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-4MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD03/01/2017Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-5MDXO MARYLAND, LLC (Verizon Communications)4773REISTERSTNBLTMMDSNDS507/02/2007Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-6MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD12/09/2015Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-7MDBANDWIDTH.COM CLEC, LLC - MD071FREISTERSTNNOCLLIKNOWN08/05/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-8MDBANDWIDTH.COM CLEC, LLC - MD071FREISTERSTNNOCLLIKNOWN01/26/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-712-9MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910REISTERSTNHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40Z07/02/2002Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-744
443-744-0MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-1MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-2MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-3MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-4MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-5MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-8MDCOMCAST IP PHONE, LLC318JREISTERSTNNOCLLIKNOWN12/30/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-744-9MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664REISTERSTNBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD00/00/0000Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-881
443-881-0MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD02/23/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-1MDLOCAL ACCESS LLC - MD082HREISTERSTNNOCLLIKNOWN02/23/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-2MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716REISTERSTNBLTMMDCHW2912/15/2006Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-3MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD09/20/2017Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-4MDCOMCAST IP PHONE, LLC318JREISTERSTNNOCLLIKNOWN05/24/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-5MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD02/23/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-6MDMETROPCS, INC. (T-Mobile US, Inc)5562REISTERSTNBLTMMDCHFMD12/13/2017Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-7MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/15/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-8MDPEERLESS NETWORK OF MARYLAND, 568GREISTERSTNNOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-881-9MDPEERLESS NETWORK OF MARYLAND, 568GREISTERSTNNOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS012/21/2018Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-259
667-259-0MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-1MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-2MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-3MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS012/27/2018Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-4MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS012/27/2018Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-5MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS012/27/2018Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-6MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-7MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-8MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-259-9MDCORE COMMUNICATIONS, INC.- MD2593REISTERSTNNOCLLIKNOWN04/16/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS009/22/2020Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-296
667-296-0MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN02/04/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-1MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN02/04/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-2MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS009/23/2020Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-3MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS009/23/2020Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-4MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS009/23/2020Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-5MDTWILIO INTERNATIONAL, INC.506JREISTERSTNNOCLLIKNOWN12/01/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-6MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS001/26/2021Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-7MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS001/26/2021Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-8MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228REISTERSTNBLTOMDKHDS001/26/2021Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-296-9MDONVOY, LLC - MD (Inteliquent)876DREISTERSTNNOCLLIKNOWN09/16/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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