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Baltimore, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-447 9 CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-04-01   
443-449 A PIVLMDPKXEX  829J PAETEC ITEL, LLC 238   2025-04-01   
443-449 0 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-07-22   
443-449 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-07-22   
443-449 2 PIVLMDPKXEX  829J PAETEC ITEL, LLC 238   2007-05-19   
443-449 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-08   
443-449 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-449 5 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-07-27   
443-449 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-07-27   
443-449 7 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-07-27   
443-449 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-08-17   
443-449 9 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-08-17   
443-451 A PIVLMDPKXEX  829J PAETEC ITEL, LLC 238   2025-04-01   
443-452 A PIVLMDPKXEX  829J PAETEC ITEL, LLC 238   2025-04-01   
443-452 0 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-02-07   
443-452 1 PIVLMDPKXEX  829J PAETEC ITEL, LLC 238   2005-10-30   
443-452 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-02-24   
443-452 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-02-24   
443-452 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-10-31   
443-452 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-02-24   
443-452 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-02-24   
443-452 7 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-02-03   
443-452 8 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-02-03   
443-452 9 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-02-03   
443-453 A BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-453 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2007-12-03   
443-453 1 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-453 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-453 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-453 4 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-453 5 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-05-16   
443-453 6 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-453 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-453 8 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-453 9 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-06-09   
443-455 A BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
443-455 0 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   
443-455 1 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2009-10-12   
443-455 2 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-07-04   
443-455 3 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-07-04   
443-455 4   145J TERRA NOVA TELECOM INC. 238   2023-11-16   
443-455 5 BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238   2006-06-14   
443-455 6 BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238   2006-06-19   
443-455 7 BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-07-04   
443-455 8 BLTMMDWLDS0  9212 VERIZON MARYLAND, INC. 238   2006-06-14   
443-455 9 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-02-24   
443-462 A BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-462 0 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-01-15   
443-462 1 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-04-02   
443-462 2 BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-04-02   

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Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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