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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
443-963 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-24   
443-963 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-24   
443-963 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-24   
443-963 8 Baltimore MD   145J TERRA NOVA TELECOM INC. 238   2022-08-02   
443-963 9 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-07-15   
443-964 A North Beach MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-964 0 North Beach MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-964 1 North Beach MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-17   
443-964 2 North Beach MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2006-07-31   
443-964 3 North Beach MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2010-02-01   
443-964 4 North Beach MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-03-07   
443-964 5 North Beach MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2011-06-28   
443-964 6 North Beach MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2012-07-08   
443-964 7 North Beach MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-964 8 North Beach MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-01-22   
443-964 9 North Beach MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-01-02   
443-965 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2024-02-09   
443-965 0 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 1 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 2 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238   2006-08-31   
443-965 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2023-10-20   
443-965 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
443-965 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-08-23   
443-965 9 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-08-09   
443-966 A Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-966 0 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-11-06   
443-966 1 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-02-16   
443-966 2 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-08-01   
443-966 3 Fallston MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-01-09   
443-966 4 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-966 5 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-07-02   
443-966 6 Fallston MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-03-04   
443-966 7 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-01-12   
443-966 8 Fallston MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-966 9 Fallston MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 A North East MD NRTEMDNERS0  9212 VERIZON MARYLAND, INC. 238      
443-967 0 North East MD NRTEMDNERS0  9212 VERIZON MARYLAND, INC. 238      
443-967 1 North East MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 2 North East MD BLTMMDCH3MD  228C IDT AMERICA, CORP. - MD 238   2012-01-08   
443-967 3 North East MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-05-23   
443-967 4 North East MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-08-22   
443-967 5 North East MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-967 6 North East MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-967 7 North East MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-967 8 North East MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 9 North East MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-12-31   
443-968 A Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 0 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-968 1 Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2003-01-24   
443-968 2 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-04-08   
443-968 3 Prince Frederick MD   829J PAETEC ITEL, LLC 238   2006-07-30   
443-968 4 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-06-23   
443-968 5 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-10-07   
443-968 6 Prince Frederick MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2003-01-24   
443-968 7 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-968 8 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-05-24   
443-968 9 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2011-12-16   
443-969 A Essex MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-969 0 Essex MD   829J PAETEC ITEL, LLC 238      
443-969 1 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-12-01   
443-969 2 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-969 3 Essex MD   829J PAETEC ITEL, LLC 238      
443-969 4 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-969 5 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-02-05   
443-969 6 Essex MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-02-15   
443-969 7 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-16   
443-969 8 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-16   
443-969 9 Essex MD   829J PAETEC ITEL, LLC 238      
443-970 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-970 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-970 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-970 2 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-970 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-970 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-19   
443-970 5 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-20   
443-970 6 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-20   
443-970 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-22   
443-970 8 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-22   
443-970 9 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-01-22   
443-971 A Taneytown MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-971 0 Taneytown MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-971 1 Taneytown MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-04-15   
443-971 3 Taneytown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-971 4 Taneytown MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-09-13   
443-971 6 Taneytown MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-31   
443-971 7 Taneytown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2020-06-04   
443-971 8 Taneytown MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-971 9 Taneytown MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-972 A Cambridge MD   829J PAETEC ITEL, LLC 242   2025-04-01   
443-972 0 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2016-04-12   
443-972 1 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2016-04-12   
443-972 2 Cambridge MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
443-972 3 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2022-09-13   
443-972 4 Cambridge MD   829J PAETEC ITEL, LLC 242   2012-08-15   
443-972 5 Cambridge MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
443-972 6 Cambridge MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-07-31   
443-972 7 Cambridge MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2018-01-14   

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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