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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-868 4 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-04-30   
443-868 5 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2016-04-30   
443-868 6 Essex MD PIVLMDPKXFX  829J PAETEC ITEL, LLC 238   2011-10-21   
443-868 7 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-07-16   
443-868 8 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-03-16   
443-868 9 Essex MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-869 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-869 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-08-05   
443-869 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-08-07   
443-869 2 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-10-07   
443-869 3 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-10-07   
443-869 4 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-10-07   
443-869 5 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-10-07   
443-869 6 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2009-09-10   
443-869 7 Baltimore MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2024-10-23   
443-869 8 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-26   
443-869 9 Baltimore MD CLMAMDORAMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-08-26   
443-870 A Pikesville MD BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 0 Pikesville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-870 1 Pikesville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-870 2 Pikesville MD BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 3 Pikesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-10-15   
443-870 4 Pikesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-870 5 Pikesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-870 6 Pikesville MD BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 7 Pikesville MD BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 8 Pikesville MD BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-870 9 Pikesville MD BLTMMDSNNMD  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-871 A Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 0 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 1 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 2 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 3 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 4 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 5 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 6 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 7 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 8 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-871 9 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-872 A Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2025-04-01   
443-872 0 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238      
443-872 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-02-04   
443-872 2 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2003-09-22   
443-872 3 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2003-09-22   
443-872 4 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2003-09-22   
443-872 5 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2003-09-22   
443-872 6 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2003-06-26   
443-872 7 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2003-06-26   
443-872 8 Baltimore MD PIVLMDPKXGX  829J PAETEC ITEL, LLC 238   2003-06-26   
443-872 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-06-16   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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