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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-220MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/30/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-220
410-220-0MDPEERLESS NETWORK OF MARYLAND, 568GELKRIDGENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-1MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGENOCLLIKNOWN11/09/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-2MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN02/06/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-3MDCOMCAST IP PHONE, LLC318JELKRIDGENOCLLIKNOWN11/12/2012Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-4MDPEERLESS NETWORK OF MARYLAND, 568GELKRIDGENOCLLIKNOWN04/04/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-5MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGENOCLLIKNOWN05/21/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-6MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN07/15/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z10/04/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-8MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN07/25/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-220-9MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z10/04/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/15/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-300
410-300-0MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z05/01/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-1MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/20/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-2MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z12/05/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-3MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z12/05/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-4MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z12/05/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-5MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/20/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/20/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/20/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-8MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/15/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-300-9MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/15/2004Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-331MDUSA MOBILITY WIRELESS, INC. (Spok, Inc)6630ELKRIDGEHNVAMDAE3MD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-379MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-407MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-460MDUSA MOBILITY WIRELESS, INC. (Spok, Inc)6630ELKRIDGEHNVAMDAE3MD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-471MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-478MDUSA MOBILITY WIRELESS, INC. (Spok, Inc)6630ELKRIDGEBLTMMDCH45Z00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-503MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-540MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ELKRIDGEBLTMMDFMDS000/00/0000Prefix 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 410-564
410-564-0MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ELKRIDGEBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-1MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN07/25/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-2MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ELKRIDGEBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-3MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/29/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-4MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z06/26/2007Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-5MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ELKRIDGEBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z06/26/2007Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z06/26/2007Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-8MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z06/26/2007Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-564-9MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/17/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-567
410-567-0MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN10/25/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-1MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-2MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-3MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/07/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-4MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGENOCLLIKNOWN03/01/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-5MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN03/11/2002Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/07/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-7MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS009/19/2006Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-8MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-567-9MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-579MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/31/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-660
410-660-0MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/02/2008Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-1MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/02/2008Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-2MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN01/22/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-3MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z10/15/2009Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-4MDONVOY SPECTRUM, LLC (Inteliquent)624HELKRIDGENOCLLIKNOWN10/13/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-5MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z12/13/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z12/13/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z12/13/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-8MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z10/15/2009Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-660-9MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z08/04/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-678MDUSA MOBILITY WIRELESS, INC. (Spok, Inc)6630ELKRIDGEHNVAMDAE3MD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-712MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDPKRS000/00/0000Prefix Type: RBOC
Switch Name: PARKWAY
Switch Type: NTDMSRSC
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591ELKRIDGEBLTMMDDNDS200/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-717
410-717-0MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591ELKRIDGEBLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-1MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591ELKRIDGEBLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-2MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/07/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-3MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/07/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-4MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591ELKRIDGEBLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-5MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/07/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z11/27/2009Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-7MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591ELKRIDGEBLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-8MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z11/27/2009Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-717-9MDLEVEL 3 TELECOM OF MARYLAND, L (CenturyLink, Inc)7591ELKRIDGEBLTMMDDNDS2N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDPKRS000/00/0000Prefix Type: RBOC
Switch Name: PARKWAY
Switch Type: NTDMSRSC
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-782
410-782-0MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN03/13/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-1MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z05/01/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDPKRS0N/APrefix Type: RBOC
Switch Name: PARKWAY
Switch Type: NTDMSRSC
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-3MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN01/16/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-4MDATX TELECOMMUNICATIONS SERVICE1958ELKRIDGENOCLLIKNOWN02/03/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-5MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z05/01/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-6MDVDL, INC. DBA GLOBAL TELECOM B4492ELKRIDGENOCLLIKNOWN01/21/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDPKRS0N/APrefix Type: RBOC
Switch Name: PARKWAY
Switch Type: NTDMSRSC
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDPKRS0N/APrefix Type: RBOC
Switch Name: PARKWAY
Switch Type: NTDMSRSC
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-782-9MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z07/17/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-796
410-796-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-4MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-5MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-6MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-796-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS0N/APrefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-909MDUSA MOBILITY WIRELESS, INC. (Spok, Inc)6630ELKRIDGEHNVAMDAE3MD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-932MDUSA MOBILITY WIRELESS, INC. (Spok, Inc)6630ELKRIDGEHNVAMDAE3MD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS000/00/0000Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-445
443-445-0MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGENOCLLIKNOWN01/26/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-1MDPEERLESS NETWORK OF MARYLAND, 568GELKRIDGENOCLLIKNOWN03/24/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-2MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN05/31/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-3MDCOMCAST IP PHONE, LLC318JELKRIDGENOCLLIKNOWN02/11/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-4MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSNDS501/30/2005Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-5MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSNDS501/30/2005Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-6MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSNDS501/30/2005Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS012/01/2003Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-8MDVERIZON MARYLAND, INC. (Verizon Communications)9212ELKRIDGEEKRGMDELDS012/01/2003Prefix Type: RBOC
Switch Name: ELKRIDGE
Switch Type: NTDMS100
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-445-9MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSN5MD11/07/2001Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ELKRIDGEBLTMMDCHW2900/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-459
443-459-0MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ELKRIDGEBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-1MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGENOCLLIKNOWN09/21/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-2MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSN5MD01/30/2005Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-3MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ELKRIDGEBLTMMDCHW2908/13/2004Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-4MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN07/18/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-5MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSNDS511/15/2005Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/07/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z09/07/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-8MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSN5MD11/15/2005Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-459-9MDXO MARYLAND, LLC (Verizon Communications)4773ELKRIDGEBLTMMDSN5MD11/15/2005Prefix Type: CLEC
Switch Name: BRYNPKLNCM
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ELKRIDGEBLTOMDXIDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-492
443-492-0MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ELKRIDGEBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-1MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ELKRIDGEBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-2MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN01/31/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-3MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWN01/31/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-4MDGLOBAL CROSSING LOCAL SERVICES (CenturyLink, Inc)6050ELKRIDGEBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-5MDLEVEL 3 COMMUNICATIONS, LLC - (CenturyLink, Inc)6119ELKRIDGENOCLLIKNOWNN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-6MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697ELKRIDGENOCLLIKNOWN07/22/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-8MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z03/03/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-492-9MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGENOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561MDUS LEC OF MARYLAND, INC.2589ELKRIDGECLMAMDJTDS000/00/0000Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-561
443-561-0MDUS LEC OF MARYLAND, INC.2589ELKRIDGECLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-1MDUS LEC OF MARYLAND, INC.2589ELKRIDGECLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-2MDUS LEC OF MARYLAND, INC.2589ELKRIDGECLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-3MDUS LEC OF MARYLAND, INC.2589ELKRIDGECLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-4MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT003/23/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-5MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z03/03/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z03/03/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z03/03/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-8MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z03/03/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-561-9MDUS LEC OF MARYLAND, INC.2589ELKRIDGECLMAMDJTDS0N/APrefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGEBLTMMD91GT000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-592
443-592-0MDONVOY SPECTRUM, LLC (Inteliquent)624HELKRIDGENOCLLIKNOWN02/17/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-1MDONVOY SPECTRUM, LLC (Inteliquent)624HELKRIDGENOCLLIKNOWN12/17/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-2MDONVOY SPECTRUM, LLC (Inteliquent)624HELKRIDGENOCLLIKNOWN02/17/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-3MDCOMCAST IP PHONE, LLC318JELKRIDGENOCLLIKNOWN03/20/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-4MDONVOY SPECTRUM, LLC (Inteliquent)624HELKRIDGENOCLLIKNOWN12/17/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-5MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGEBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-6MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGEBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-7MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGEBLTMMD91GT005/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-8MDLOCAL ACCESS LLC - MD082HELKRIDGENOCLLIKNOWN03/27/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-592-9MDTERRA NOVA TELECOM INC.145JELKRIDGENOCLLIKNOWN12/30/2020Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ELKRIDGEHNVAMDBHAMD05/11/2001Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-757
443-757-0MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ELKRIDGEHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-1MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ELKRIDGEHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-2MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z03/03/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-3MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ELKRIDGEHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-4MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z03/03/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-5MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ELKRIDGEHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-6MDTERRA NOVA TELECOM INC.145JELKRIDGENOCLLIKNOWN08/04/2022Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z11/01/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-8MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ELKRIDGEHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-757-9MDCAVALIER TELEPHONE MID-ATLANTI (Windstream Communications)3910ELKRIDGEHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGEBLTMMDCH45Z01/17/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-776
443-776-0MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGEBLTMMDCH45Z01/20/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-1MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGEBLTMMDCH45Z01/20/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-2MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN09/03/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-3MDCOMCAST IP PHONE, LLC318JELKRIDGENOCLLIKNOWN07/21/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-4MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN09/03/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-5MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS001/16/2015Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-6MDBALTIMORE-WASHINGTON TELEPHONE8697ELKRIDGENOCLLIKNOWN05/18/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-7MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JELKRIDGEBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-8MDBANDWIDTH.COM CLEC, LLC - MD071FELKRIDGEBLTMMDCH45Z06/08/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-776-9MDLOCAL ACCESS LLC - MD082HELKRIDGENOCLLIKNOWN02/23/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ELKRIDGEBLTMMDCHW2900/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-820
443-820-0MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ELKRIDGEBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-1MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ELKRIDGEBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-2MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS007/16/2009Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-3MDCOMCAST IP PHONE, LLC318JELKRIDGENOCLLIKNOWN01/09/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-4MDMCIMETRO ACCESS TRANSMISSION S (Verizon Communications)7228ELKRIDGEBLTOMDKHDS009/11/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-5MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z11/01/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-6MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z11/01/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-7MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z11/01/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-8MDSPRINT SPECTRUM, L.P. (T-Mobile US, Inc)6664ELKRIDGEBLTMMDCH40Z11/01/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-820-9MDPAETEC COMMUNICATIONS, INC. - (Windstream Communications)4716ELKRIDGEBLTMMDCHW29N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-936MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT002/23/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-936
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-936-1MDPEERLESS NETWORK OF MARYLAND, 568GELKRIDGENOCLLIKNOWN11/03/2021Prefix Type: CLEC
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LATA: Baltimore MD (238)
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Detailed Switch Info
443-936-2MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGENOCLLIKNOWN03/14/2019Prefix Type: CLEC
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-936-3MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGENOCLLIKNOWN07/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-936-4MDCORE COMMUNICATIONS, INC.- MD2593ELKRIDGENOCLLIKNOWN07/12/2019Prefix Type: CLEC
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-936-5MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT011/02/2018Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
443-936-6MDCENTURYLINK COMMUNICATIONS, LL (CenturyLink, Inc)508JELKRIDGEBLTMMDDN2MD09/24/2018Prefix Type: IPES
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Tandem: N/A
Detailed Switch Info
443-936-7MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT003/05/2018Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
443-936-8MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT009/20/2017Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
443-936-9MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT002/23/2017Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-274MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT010/11/2019Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
Thousands block for 667-274
667-274-0MDPEERLESS NETWORK OF MARYLAND, 568GELKRIDGENOCLLIKNOWN09/30/2020Prefix Type: CLEC
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Detailed Switch Info
667-274-1MDTELEPORT COMMUNICATIONS AMERIC (AT&T)7325ELKRIDGENOCLLIKNOWN07/22/2020Prefix Type: CLEC
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Detailed Switch Info
667-274-2MDTWILIO INTERNATIONAL, INC.506JELKRIDGENOCLLIKNOWN11/25/2020Prefix Type: IPES
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Detailed Switch Info
667-274-3MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT009/29/2021Prefix Type: WIRELESS
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Detailed Switch Info
667-274-4MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT007/19/2021Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-274-5MDPEERLESS NETWORK OF MARYLAND, 568GELKRIDGENOCLLIKNOWN06/17/2021Prefix Type: CLEC
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Detailed Switch Info
667-274-6MDONVOY SPECTRUM, LLC (Inteliquent)624HELKRIDGENOCLLIKNOWN04/23/2021Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-274-7MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT008/16/2022Prefix Type: WIRELESS
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Detailed Switch Info
667-274-8MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT010/11/2019Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-274-9MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT010/11/2019Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-446MDTON80 COMMUNICATIONS, LLC516JELKRIDGEBLTQMD01BMD03/01/2022Prefix Type: UNKNOWN
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LATA: Baltimore MD (238)
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Detailed Switch Info
Thousands block for 667-446
667-446-0MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT010/05/2022Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-446-6MDTON80 COMMUNICATIONS, LLC516JELKRIDGEBLTQMD01BMD03/01/2022Prefix Type: UNKNOWN
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LATA: Baltimore MD (238)
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Detailed Switch Info
667-701MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT010/19/2015Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
Thousands block for 667-701
667-701-0MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN11/12/2015Prefix Type: CLEC
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Detailed Switch Info
667-701-1MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN12/30/2015Prefix Type: CLEC
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Detailed Switch Info
667-701-2MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT008/22/2016Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-701-3MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN02/12/2016Prefix Type: CLEC
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-701-4MDONVOY, LLC - MD (Inteliquent)876DELKRIDGENOCLLIKNOWN02/12/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-701-5MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT003/21/2016Prefix Type: WIRELESS
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Tandem: N/A
Detailed Switch Info
667-701-6MDLOCAL ACCESS LLC - MD082HELKRIDGENOCLLIKNOWN09/15/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-701-7MDBARR TELL USA, INC.964HELKRIDGENOCLLIKNOWN11/18/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-701-8MDLOCAL ACCESS LLC - MD082HELKRIDGENOCLLIKNOWN12/07/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-701-9MDNEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)4036ELKRIDGECLMAMDORGT010/20/2015Prefix Type: WIRELESS
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z03/23/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-999
667-999-0MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z06/30/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-1MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z06/30/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-2MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z06/30/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-3MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z06/30/2015Prefix Type: CLEC
Switch Name: N/A
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-4MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z03/25/2015Prefix Type: CLEC
Switch Name: N/A
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-5MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z06/30/2015Prefix Type: CLEC
Switch Name: N/A
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LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-6MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z06/30/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-7MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z03/25/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-8MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z03/25/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-999-9MDONVOY, LLC - MD (Inteliquent)876DELKRIDGEBLTMMDCH42Z03/25/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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