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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
443-703 4 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2004-04-16   
443-703 5 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2004-04-16   
443-703 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-08-13   
443-703 7 Baltimore MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2004-04-16   
443-703 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-08-13   
443-703 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-08-13   
443-704 A Odenton MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-704 0 Odenton MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-704 1 Odenton MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-704 2 Odenton MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2014-12-26   
443-704 3 Odenton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2020-06-04   
443-704 4 Odenton MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2014-12-22   
443-704 5 Odenton MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL, INC. 238   2020-12-26   
443-704 6 Odenton MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2015-09-20   
443-704 7 Odenton MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2019-10-13   
443-704 8 Odenton MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-704 9 Odenton MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2020-08-26   
443-705 A Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-03-01   
443-705 0 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-09-16   
443-705 1 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-09-16   
443-705 4 Cockeysville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-15   
443-705 5 Cockeysville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2019-08-22   
443-705 6 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-10-18   
443-705 7 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-10-18   
443-705 8 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-07-19   
443-705 9 Cockeysville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-07-19   
443-706 A Crisfield MD SLBRMDSBX6Y  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-706 0 Crisfield MD   145J TERRA NOVA TELECOM INC. 242   2024-02-15   
443-706 1 Crisfield MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-29   
443-706 2 Crisfield MD SLBRMDSBX6Y  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 242      
443-706 3 Crisfield MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-02   
443-706 6 Crisfield MD   145J TERRA NOVA TELECOM INC. 242   2021-11-01   
443-706 7 Crisfield MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2016-10-10   
443-706 8 Crisfield MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
443-706 9 Crisfield MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-04-29   
443-707 A Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
443-707 0 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-08   
443-707 1 Aberdeen MD   515J IP HORIZON LLC 236   2014-08-08   
443-707 2 Aberdeen MD BLTMMDCH42Z  876D ONVOY, LLC - MD 236   2015-07-29   
443-707 3 Aberdeen MD BLTMMDCH42Z  876D ONVOY, LLC - MD 236   2015-07-29   
443-707 4 Aberdeen MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 236   2014-11-17   
443-707 5 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 6 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 7 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2015-01-31   
443-707 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-08   
443-707 9 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-11-08   
443-708 A Baltimore MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
443-708 0 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 1 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   
443-708 2 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-14   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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