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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
443-814 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-08-13   
443-814 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-08-16   
443-814 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-08-16   
443-814 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-08-16   
443-814 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-08-16   
443-814 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-08-16   
443-814 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-08-16   
443-814 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-10-01   
443-814 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-10-01   
443-814 9 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-12-23   
443-815 A Essex MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-815 0 Essex MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-815 1 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-815 2 Essex MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-815 3 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-10-03   
443-815 4 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-11-01   
443-815 5 Essex MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-815 6 Essex MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-815 7 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-11-01   
443-815 8 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-815 9 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-11-08   
443-816 A Severna Park MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-816 0 Severna Park MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-816 1 Severna Park MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-816 2 Severna Park MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-816 3 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-12-27   
443-816 4 Severna Park MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-22   
443-816 5 Severna Park MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-22   
443-816 6 Severna Park MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-22   
443-816 7 Severna Park MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-22   
443-816 8 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-12-27   
443-816 9 Severna Park MD   876D ONVOY, LLC - MD 238   2025-04-06   
443-817 A Armiger-Gibson Island MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-817 0 Armiger-Gibson Island MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-817 1 Armiger-Gibson Island MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-817 2 Armiger-Gibson Island MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-11-30   
443-817 3 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2015-01-12   
443-817 4 Armiger-Gibson Island MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-817 5 Armiger-Gibson Island MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-817 6 Armiger-Gibson Island MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-817 7 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-09-30   
443-817 8 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2015-01-12   
443-817 9 Armiger-Gibson Island MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-818 A Armiger-Gibson Island MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-818 0 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-10-01   
443-818 1 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-07-01   
443-818 2 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-07-01   
443-818 3 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-08-22   
443-818 4 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-08-22   
443-818 5 Armiger-Gibson Island MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-02-20   
443-818 6 Armiger-Gibson Island MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-02-20   
443-818 7 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-10-01   
443-818 8 Armiger-Gibson Island MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-11-22   
443-818 9 Armiger-Gibson Island MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-02-13   
443-819 A Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-819 0 Bel Air MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-06-05   
443-819 1 Bel Air MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-07-30   
443-819 2 Bel Air MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-07-30   
443-819 3 Bel Air MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-10-10   
443-819 4 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-08-22   
443-819 5 Bel Air MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-12-12   
443-819 6 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-819 7 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-819 8 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-03-21   
443-819 9 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-03-21   
443-820 A Elkridge MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-820 0 Elkridge MD   829J PAETEC ITEL, LLC 238      
443-820 1 Elkridge MD   829J PAETEC ITEL, LLC 238      
443-820 2 Elkridge MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2009-07-28   
443-820 3 Elkridge MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-01-19   
443-820 4 Elkridge MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-820 5 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-11-11   
443-820 6 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-11-11   
443-820 7 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-11-11   
443-820 8 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-12-27   
443-820 9 Elkridge MD   829J PAETEC ITEL, LLC 238      
443-821 A Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-821 0 Westminster MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-821 1 Westminster MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-11   
443-821 2 Westminster MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-10-27   
443-821 3 Westminster MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2010-12-10   
443-821 4 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-821 5 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-02-03   
443-821 6 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-09-27   
443-821 7 Westminster MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-06-02   
443-821 8 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-09-06   
443-821 9 Westminster MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2010-09-06   
443-822 A Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 0 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 1 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 2 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-01-03   
443-822 3 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 4 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 5 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 6 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 7 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 8 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-822 9 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-823 A Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-823 0 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-09-09   

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

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