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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
410-343MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCPKTNMDPKRS000/00/0000Prefix Type: RBOC
Switch Name: PARKTON
Switch Type: WECO 5ESS Remote (5B RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-343
410-343-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCPKTNMDPKRS0N/APrefix Type: RBOC
Switch Name: PARKTON
Switch Type: WECO 5ESS Remote (5B RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCPKTNMDPKRS0N/APrefix Type: RBOC
Switch Name: PARKTON
Switch Type: WECO 5ESS Remote (5B RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCPKTNMDPKRS0N/APrefix Type: RBOC
Switch Name: PARKTON
Switch Type: WECO 5ESS Remote (5B RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCPKTNMDPKRS0N/APrefix Type: RBOC
Switch Name: PARKTON
Switch Type: WECO 5ESS Remote (5B RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-4MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN03/16/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-5MDCORE COMMUNICATIONS, INC.- MD2593SPARKSGLNCNOCLLIKNOWN03/04/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-6MDCORE COMMUNICATIONS, INC.- MD2593SPARKSGLNCNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-7MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)6119SPARKSGLNCNOCLLIKNOWN02/08/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-8MDATX TELECOMMUNICATIONS SERVICES, LTD.1958SPARKSGLNCNOCLLIKNOWN01/19/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-343-9MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN11/12/2008Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS000/00/0000Prefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 410-472
410-472-0MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-1MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-2MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-3MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-4MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-5MDLEVEL 3 COMMUNICATIONS, LLC - MD (Lumen Technologies, Inc)6119SPARKSGLNCNOCLLIKNOWN03/10/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-6MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-7MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-8MDCORE COMMUNICATIONS, INC.- MD2593SPARKSGLNCNOCLLIKNOWN04/12/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
410-472-9MDVERIZON MARYLAND, INC. (Verizon Communications)9212SPARKSGLNCMANRMDMNRS0N/APrefix Type: RBOC
Switch Name: SPARKS-GLENCOE
Switch Type: WECO 5ESS Remote (5A RSM)
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-212MDUS LEC OF MARYLAND, INC.2589SPARKSGLNCCLMAMDJTDS000/00/0000Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-212
443-212-1MDUS LEC OF MARYLAND, INC.2589SPARKSGLNCCLMAMDJTDS003/04/2003Prefix Type: CLEC
Switch Name: COLUMBIA
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-212-3MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN02/03/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-212-4MDPAETEC COMMUNICATIONS, INC. - MD (Windstream Communications)4716SPARKSGLNCBLTMMDCHW2909/17/2004Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-212-5MDCOMCAST IP PHONE, LLC (Comcast)318JSPARKSGLNCNOCLLIKNOWN02/11/2005Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-212-7MDMCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (Verizon Communications)7228SPARKSGLNCBLTOMDKHDS005/27/2008Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-212-8MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN01/26/2010Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-212-9MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN04/21/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697SPARKSGLNCBLTMMDCH14Z00/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-338
443-338-0MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN05/09/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-1MDIP HORIZON LLC515JSPARKSGLNCNOCLLIKNOWN02/19/2015Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-2MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697SPARKSGLNCBLTMMDCH14ZN/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-3MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN06/09/2015Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-4MDCOMCAST IP PHONE, LLC (Comcast)318JSPARKSGLNCNOCLLIKNOWN07/20/2015Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-5MDIP HORIZON LLC515JSPARKSGLNCNOCLLIKNOWN05/03/2016Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-6MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN01/30/2017Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-7MDCENTURYLINK COMMUNICATIONS, LLC (Lumen Technologies, Inc)508JSPARKSGLNCBLTMMDDN2MD05/27/2014Prefix Type: IPES
Switch Name: GLENBURNIE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-8MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN03/01/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-338-9MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN03/01/2016Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595MDGLOBAL CROSSING LOCAL SERVICES, INC. - MD (Lumen Technologies, Inc)6050SPARKSGLNCBLTOMDXIDS000/00/0000Prefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-595
443-595-1MDGLOBAL CROSSING LOCAL SERVICES, INC. - MD (Lumen Technologies, Inc)6050SPARKSGLNCBLTOMDXIDS0N/APrefix Type: CLEC
Switch Name: BALTIMORE
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595-3MDCTC COMMUNICATIONS CORP. - MD (Windstream Holdings)2697SPARKSGLNCNOCLLIKNOWN06/01/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595-4MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN09/01/2020Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595-5MDPEERLESS NETWORK OF MARYLAND, LLC568GSPARKSGLNCNOCLLIKNOWN11/19/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595-6MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN01/19/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595-7MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN04/20/2011Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595-8MDCOMCAST IP PHONE, LLC (Comcast)318JSPARKSGLNCNOCLLIKNOWN04/27/2012Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-595-9MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN09/12/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662MDCAVALIER TELEPHONE MID-ATLANTIC, LLC - MD (Windstream Communications)3910SPARKSGLNCHNVAMDBHAMD05/10/2001Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 443-662
443-662-0MDCAVALIER TELEPHONE MID-ATLANTIC, LLC - MD (Windstream Communications)3910SPARKSGLNCHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-1MDCAVALIER TELEPHONE MID-ATLANTIC, LLC - MD (Windstream Communications)3910SPARKSGLNCHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-2MDCORE COMMUNICATIONS, INC.- MD2593SPARKSGLNCNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-3MDCORE COMMUNICATIONS, INC.- MD2593SPARKSGLNCNOCLLIKNOWN05/23/2018Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-4MDTELEPORT COMMUNICATIONS AMERICA, LLC - MD (AT&T)7325SPARKSGLNCNOCLLIKNOWN06/29/2004Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-5MDBANDWIDTH.COM CLEC, LLC - MD071FSPARKSGLNCNOCLLIKNOWN06/03/2020Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-6MDTELNYX LLC073HSPARKSGLNCNOCLLIKNOWN04/14/2017Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-7MDPEERLESS NETWORK OF MARYLAND, LLC568GSPARKSGLNCNOCLLIKNOWN04/05/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-8MDPEERLESS NETWORK OF MARYLAND, LLC568GSPARKSGLNCNOCLLIKNOWN04/05/2013Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
443-662-9MDCAVALIER TELEPHONE MID-ATLANTIC, LLC - MD (Windstream Communications)3910SPARKSGLNCHNVAMDBHAMDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772MDONVOY SPECTRUM, LLC (Sinch)624HSPARKSGLNCBLTMMDCHXUX04/26/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
Thousands block for 667-772
667-772-0MDPEERLESS NETWORK OF MARYLAND, LLC568GSPARKSGLNCNOCLLIKNOWN01/25/2024Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-1MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN09/16/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-2MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN06/16/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-3MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN06/16/2021Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-4MDONVOY SPECTRUM, LLC (Sinch)624HSPARKSGLNCBLTMMDCHXUX02/09/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-5MDONVOY SPECTRUM, LLC (Sinch)624HSPARKSGLNCBLTMMDCHXUX02/09/2022Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-6MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN01/07/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-7MDONVOY SPECTRUM, LLC (Sinch)624HSPARKSGLNCBLTMMDCHXUX04/27/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-8MDONVOY, LLC - MD (Sinch)876DSPARKSGLNCNOCLLIKNOWN01/07/2022Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
667-772-9MDTON80 COMMUNICATIONS, LLC516JSPARKSGLNCNOCLLIKNOWN03/14/2022Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: Baltimore MD (238)
Tandem: N/A
Detailed Switch Info
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