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npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
410-259MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
410-386MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS000/00/0000Prefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-596MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
410-751MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS000/00/0000Prefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-848MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS000/00/0000Prefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-857MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS000/00/0000Prefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-861MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRRSTWMDRSRP000/00/0000Prefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: RSTWMDRSRP0))
410-861 is split into 1,000-number blocks - detail below
410-861-0XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-861-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JWESTMINSTRHNVAMDBHAMD01/10/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
410-861-2XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228WESTMINSTRBLTOMDKHDS001/16/2007Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
410-861-3XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z07/07/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
410-861-4XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JWESTMINSTRHNVAMDBHAMD04/14/2006Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
410-861-5XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN01/06/2009Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-861-6XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN01/09/2007Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-861-7XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT004/17/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
410-861-8XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRRSTWMDRSRP0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: RSTWMDRSRP0))
410-861-9XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRRSTWMDRSRP0N/APrefix Type: RBOC
Switch Name: REISTERSTOWN
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: RSTWMDRSRP0))
410-871MDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS000/00/0000Prefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-871 is split into 1,000-number blocks - detail below
410-871-0XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-871-1XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-871-2XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-871-3XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
410-871-4XXXMDQUANTUM TELECOMMUNICATIONS, INC. - MD0007761273RMD00029172596WESTMINSTRNOCLLIKNOWN10/20/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-871-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT010/07/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
410-871-6XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228WESTMINSTRBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
410-871-7XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228WESTMINSTRBLTOMDKHDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
410-871-8XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN01/26/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
410-871-9XXXMDVERIZON MARYLAND, INC. (Verizon Communications)0002166825RMD00029419212WESTMINSTRWMNSMDWMDS0N/APrefix Type: RBOC
Switch Name: WESTMINSTER
Switch Type: WECO 5ESS Host (Digital)
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: WMNSMDWMDS0))
443-201MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT000/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-201 is split into 1,000-number blocks - detail below
443-201-0XXXMDIP HORIZON LLC0027469766RMD0001571515JWESTMINSTRNOCLLIKNOWN08/12/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-201-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN05/06/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-201-2XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WESTMINSTRNOCLLIKNOWN02/03/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-201-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/03/2014Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-201-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT008/03/2015Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-201-5XXXMDCENTURYLINK COMMUNICATIONS, LLC (Lumen Technologies, Inc)0031422439RMD0006976508JWESTMINSTRBLTMMDDN2MD03/06/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDDN2MD))
443-201-6XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT008/07/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-201-7XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN09/13/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-201-8XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN11/01/2013Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-201-9XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN08/18/2015Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-241MDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRBLTMMDCH42Z00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH42Z))
443-244MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WESTMINSTRBLTMMDSN6MD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-244 is split into 1,000-number blocks - detail below
443-244-0XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT002/04/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-244-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD07/08/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-244-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD02/03/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-244-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/07/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-244-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WESTMINSTRBLTMMDSN6MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-244-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT010/12/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-244-6XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN02/11/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-244-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD11/03/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-244-8XXXMDVDL, INC. DBA GLOBAL TELECOM BROKERS - MD0018511246RMD00030544492WESTMINSTRNOCLLIKNOWN10/17/2003Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-244-9XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WESTMINSTRBLTMMDSN6MD02/02/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-289MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228WESTMINSTRBLTOMDKHDS005/16/2011Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-289 is split into 1,000-number blocks - detail below
443-289-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/02/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-289-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/02/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-289-2XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228WESTMINSTRBLTOMDKHDS005/17/2011Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-289-3XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228WESTMINSTRBLTOMDKHDS005/17/2011Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-289-4XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z09/28/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-289-5XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z09/28/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-289-6XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WESTMINSTRNOCLLIKNOWN09/28/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-289-7XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WESTMINSTRNOCLLIKNOWN09/28/2011Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-289-8XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN10/26/2012Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-289-9XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN02/07/2014Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-293MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDXIDS000/00/0000Prefix Type: WIRELESS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-293 is split into 1,000-number blocks - detail below
443-293-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN09/04/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-293-1XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN10/06/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-293-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT001/10/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-293-3XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JWESTMINSTRBLTMMDCHW2907/03/2006Prefix Type: IPES
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHW29))
443-293-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDXIDS012/30/2025Prefix Type: WIRELESS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-293-5XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN08/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-293-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDXIDS009/02/2011Prefix Type: WIRELESS
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDXIDS0))
443-293-7XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN02/11/2008Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-293-8XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229WESTMINSTRBLTMMDCHXNX05/02/2007Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-340MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD00/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-368MDCORE COMMUNICATIONS, INC.- MDN/A2593WESTMINSTRBLTMMD91DS000/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS0))
443-487MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WESTMINSTRBLTMMDSN6MD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-487 is split into 1,000-number blocks - detail below
443-487-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN09/16/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-487-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD02/05/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-487-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD03/05/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-487-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD01/05/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-487-4XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WESTMINSTRBLTMMDSN6MD04/07/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDSN6MD))
443-487-5XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JWESTMINSTRCLMAMDJTDS010/29/2002Prefix Type: IPES
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDJTDS0))
443-487-6XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN08/04/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-487-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/05/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-487-8XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229WESTMINSTRBLTMMDCHXNX11/04/2002Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-487-9XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN09/14/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-536MDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z00/00/0000Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536 is split into 1,000-number blocks - detail below
443-536-0XXXMDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)0015338122RMD00061126119WESTMINSTRNOCLLIKNOWN11/26/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-536-1XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-2XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z01/04/2005Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-3XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-4XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z08/10/2007Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-5XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-6XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-7XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z08/10/2007Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-8XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z05/22/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-536-9XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40ZN/APrefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-547MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD05/07/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547 is split into 1,000-number blocks - detail below
443-547-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD05/11/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547-1XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z08/28/2009Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-547-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/03/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD01/07/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD04/05/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD06/03/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547-6XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN01/31/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-547-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD03/04/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD04/04/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-547-9XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z07/07/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-605MDPAETEC ITEL, LLC0015247810RMD0038378829JWESTMINSTRHNVAMDBHAMD00/00/0000Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-605 is split into 1,000-number blocks - detail below
443-605-0XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JWESTMINSTRHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-605-1XXXMDPAETEC ITEL, LLC0015247810RMD0038378829JWESTMINSTRHNVAMDBHAMDN/APrefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: HNVAMDBHAMD))
443-605-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD06/02/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-605-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD01/05/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-605-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD03/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-605-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD04/07/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-605-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD04/07/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-605-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD07/06/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-605-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT011/24/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-605-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT011/24/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT000/00/0000Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789 is split into 1,000-number blocks - detail below
443-789-0XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT0N/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789-1XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT0N/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT0N/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT002/06/2009Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT0N/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789-5XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC0004999405RMD00029577229WESTMINSTRBLTMMDCHXNX09/25/2008Prefix Type: CLEC
Switch Name: ROCKVILLE
Switch Type: Digital Switching System
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCHXNX))
443-789-6XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z12/19/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-789-7XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z12/19/2006Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-789-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT008/30/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-789-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT008/30/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-821MDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z07/13/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-821 is split into 1,000-number blocks - detail below
443-821-0XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN09/28/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-821-1XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/29/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-821-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT010/15/2010Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-821-3XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN11/10/2010Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-821-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD01/04/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-821-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD01/04/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-821-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/02/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-821-7XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN05/04/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-821-8XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z07/14/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-821-9XXXMDMETROPCS, INC. (T-Mobile US, Inc)N/A5562WESTMINSTRBLTMMDCH40Z07/14/2010Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-952MDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/07/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-952 is split into 1,000-number blocks - detail below
443-952-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/09/2011Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-952-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD05/18/2012Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-952-2XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN02/11/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-952-3XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN05/01/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-952-4XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN09/22/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-952-5XXXMDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)0004999405RMD00029577228WESTMINSTRBLTOMDKHDS008/13/2013Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHDS0))
443-952-6XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN08/07/2014Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-952-7XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN11/23/2011Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-952-8XXXMDPEERLESS NETWORK OF MARYLAND, LLCN/A568GWESTMINSTRNOCLLIKNOWN04/05/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-952-9XXXMDPEERLESS NETWORK OF MARYLAND, LLCN/A568GWESTMINSTRNOCLLIKNOWN04/05/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-974MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325WESTMINSTRBLTMMDFMDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDFMDS0))
443-974 is split into 1,000-number blocks - detail below
443-974-0XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD02/06/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-1XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD05/02/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-2XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD06/02/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-3XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD06/02/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-4XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/03/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT008/29/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
443-974-6XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD10/04/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD12/05/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-8XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD01/04/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
443-974-9XXXMDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)0004274114RMD00038977325WESTMINSTRBLTMMDFMDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDFMDS0))
667-272MDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/18/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-272 is split into 1,000-number blocks - detail below
667-272-0XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN08/24/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-272-1XXXMDONVOY SPECTRUM, LLC (Sinch)0024415002RMD0002045624HWESTMINSTRNOCLLIKNOWN04/24/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-272-2XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WESTMINSTRNOCLLIKNOWN04/22/2025Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-272-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT005/26/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-272-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/18/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-272-5XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/18/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-272-6XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/18/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-272-7XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/18/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-272-8XXXMDTON80 COMMUNICATIONS, LLC0025462672RMD0005819516JWESTMINSTRNOCLLIKNOWN06/17/2021Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-272-9XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/18/2019Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-314MDBARR TELL USA, INC.0012167557RMD0001416964HWESTMINSTRBLTQMD012MD00/00/0000Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD012MD))
667-314 is split into 1,000-number blocks - detail below
667-314-0XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN06/17/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-314-1XXXMDBARR TELL USA, INC.0012167557RMD0001416964HWESTMINSTRBLTQMD012MD11/18/2016Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD012MD))
667-314-2XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT009/15/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-314-3XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN09/28/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-314-4XXXMDTELNYX LLC0018998724RMD0001645073HWESTMINSTRNOCLLIKNOWN03/02/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-314-5XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD09/06/2017Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
667-314-6XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN06/16/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-314-7XXXMDTERRA NOVA TELECOM INC.0021193057RMD0001495145JWESTMINSTRNOCLLIKNOWN01/09/2024Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-314-8XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN03/21/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-314-9XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN03/21/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-367MDBALTIMORE-WASHINGTON TELEPHONE (BWT)0008104507RMD00045168697WESTMINSTRBLTMMDCH25Z05/21/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH25Z))
667-367 is split into 1,000-number blocks - detail below
667-367-0XXXMDIP HORIZON LLC0027469766RMD0001571515JWESTMINSTRNOCLLIKNOWN05/03/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-367-1XXXMDBANDWIDTH.COM CLEC, LLC - MD0017042060RMD0003709071FWESTMINSTRNOCLLIKNOWN08/09/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-367-2XXXMDCOMCAST IP PHONE, LLC (Comcast)0008497687RMD0003552318JWESTMINSTRNOCLLIKNOWN05/26/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-367-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT010/14/2015Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-367-4XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT006/23/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-367-5XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN12/23/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-367-6XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WESTMINSTRNOCLLIKNOWN10/03/2016Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-367-7XXXMDCELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (Verizon Wireless)0003290673RMD00033826395WESTMINSTRBLTOMDKHBMD04/06/2016Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTOMDKHBMD))
667-367-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT003/26/2018Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-367-9XXXMDBALTIMORE-WASHINGTON TELEPHONE (BWT)0008104507RMD00045168697WESTMINSTRBLTMMDCH25Z05/27/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMDCH25Z))
667-484MDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JWESTMINSTRBLTQMD019MD05/08/2024Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD019MD))
667-484 is split into 1,000-number blocks - detail below
667-484-0XXXMDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JWESTMINSTRBLTQMD019MD05/08/2024Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD019MD))
667-484-1XXXMDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JWESTMINSTRBLTQMD019MD05/08/2024Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD019MD))
667-484-2XXXMDOMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)N/A6855WESTMINSTRNOCLLIKNOWN01/06/2026Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-484-6XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN12/18/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-484-7XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT012/15/2025Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-484-8XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN11/04/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-484-9XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN03/13/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-788MDQUANTUM TELECOMMUNICATIONS, INC. - MD0007761273RMD00029172596WESTMINSTRBLTMMD91DS210/22/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS2))
667-788 is split into 1,000-number blocks - detail below
667-788-0XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT011/19/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-788-1XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT011/19/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-788-2XXXMDONVOY, LLC - MD (Sinch)0004323028RMD0001966876DWESTMINSTRNOCLLIKNOWN11/20/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-788-3XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT005/26/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-788-4XXXMDBOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JWESTMINSTRBLTQMD019MD08/10/2022Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTQMD019MD))
667-788-6XXXMDONVOY SPECTRUM, LLC (Sinch)0024415002RMD0002045624HWESTMINSTRNOCLLIKNOWN12/16/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-788-7XXXMDONVOY SPECTRUM, LLC (Sinch)0024415002RMD0002045624HWESTMINSTRNOCLLIKNOWN12/16/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
667-788-8XXXMDNEW CINGULAR WIRELESS PCS, LLC - DC (AT&T Wireless)0003291192RMD00369094036WESTMINSTRCLMAMDORGT004/12/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: CLMAMDORGT0))
667-788-9XXXMDQUANTUM TELECOMMUNICATIONS, INC. - MD0007761273RMD00029172596WESTMINSTRBLTMMD91DS210/22/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
🔧 Explore Switch(CLLI: BLTMMD91DS2))
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