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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
443-388 9 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-389 A Salisbury MD SLBRMD90DS0  2593 CORE COMMUNICATIONS, INC.- MD 242      
443-390 A Churchville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-390 1 Churchville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-390 2 Churchville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-390 3 Churchville MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
443-390 5 Churchville MD   876D ONVOY, LLC - MD 238      
443-390 6 Churchville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-390 7 Churchville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-390 8 Churchville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-390 9 Churchville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-391 A Cockeysville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-391 2 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-391 3 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-391 4 Cockeysville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-391 5 Cockeysville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-391 6 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-391 7 Cockeysville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-391 8 Cockeysville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-391 9 Cockeysville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-392 A Baltimore MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-392 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 3 Baltimore MD   876D ONVOY, LLC - MD 238      
443-392 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-392 9 Baltimore MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-393 A Columbia MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-393 2 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-393 3 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-393 4 Columbia MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-393 5 Columbia MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-393 6 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-393 7 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-393 8 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-393 9 Columbia MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-394 A Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
443-395 A Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 0 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 1 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 2 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 3 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 4 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 5 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 6 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 7 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 8 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-395 9 Aberdeen MD ABRDMDABDS0  9212 VERIZON MARYLAND, INC. 236      
443-396 A Odenton MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-396 0 Odenton MD   145J TERRA NOVA TELECOM INC. 238      
443-396 1 Odenton MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-396 2 Odenton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-396 3 Odenton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-396 5 Odenton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-396 6 Odenton MD   515J IP HORIZON LLC 238      
443-396 7 Odenton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-396 8 Odenton MD BLTMMDCHX7X  073H TELNYX LLC 238      
443-396 9 Odenton MD BLTMMDCHFMD  5562 METROPCS, INC. 238      
443-397 A Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 0 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 1 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 2 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 3 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 4 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 5 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 6 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 7 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 8 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-397 9 Salisbury MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242      
443-398 A Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 0 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 1 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 2 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-398 3 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-398 4 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 5 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 6 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 7 Sykesville MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-398 8 Sykesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-398 9 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-399 A Dundalk MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-399 0 Dundalk MD   876D ONVOY, LLC - MD 238      
443-399 1 Dundalk MD   876D ONVOY, LLC - MD 238      
443-399 2 Dundalk MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-399 3 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-399 4 Dundalk MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-399 5 Dundalk MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-399 6 Dundalk MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-399 7 Dundalk MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238      
443-399 8 Dundalk MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-399 9 Dundalk MD   515J IP HORIZON LLC 238      
443-400 A Brooklyn Park-Linthicum MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 0 Brooklyn Park-Linthicum MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 1 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METROPCS, INC. 238      
443-400 2 Brooklyn Park-Linthicum MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-400 3 Brooklyn Park-Linthicum MD BLTMMDCHFMD  5562 METROPCS, INC. 238      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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