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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
443-509 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-10-21   
443-509 8 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-10-21   
443-509 9 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-10-21   
443-510 A Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-510 0 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-02-01   
443-510 1 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-04-04   
443-510 2 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-05-02   
443-510 3 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-06-05   
443-510 4 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-08-01   
443-510 5 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-08-01   
443-510 6 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-07-16   
443-510 7 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-07-16   
443-510 8 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-07-16   
443-510 9 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-08-14   
443-512 A Edgewood MD WNRNMDWNRS1  9212 VERIZON MARYLAND, INC. 238      
443-512 0 Edgewood MD WNRNMDWNRS1  9212 VERIZON MARYLAND, INC. 238      
443-512 1 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2020-07-10   
443-512 2 Edgewood MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-05   
443-512 3 Edgewood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-512 4 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-01-19   
443-512 5 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-01-19   
443-512 6 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-07-05   
443-512 7 Edgewood MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-10-14   
443-512 8 Edgewood MD WNRNMDWNRS1  9212 VERIZON MARYLAND, INC. 238      
443-512 9 Edgewood MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-513 A Berlin MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-513 0 Berlin MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-513 1 Berlin MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-513 2 Berlin MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-08-09   
443-513 3 Berlin MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2017-07-26   
443-513 4 Berlin MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2006-07-31   
443-513 5 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
443-513 6 Berlin MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2006-09-18   
443-513 7 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
443-513 8 Berlin MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2012-02-23   
443-513 9 Berlin MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
443-514 A Catonsville MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-514 0 Catonsville MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-514 1 Catonsville MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-514 2 Catonsville MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-514 3 Catonsville MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2021-05-13   
443-514 4 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-02-05   
443-514 5 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-02-05   
443-514 6 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-02-05   
443-514 7 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-02-05   
443-514 8 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-03-19   
443-514 9 Catonsville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2021-06-06   
443-515 A Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-515 0 Cambridge MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2009-08-07   
443-515 1 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2010-08-21   
443-515 2 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2011-08-25   
443-515 3 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2011-08-25   
443-515 4 Cambridge MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2022-02-03   
443-515 5 Cambridge MD   829J PAETEC ITEL, LLC 242   2010-06-27   
443-515 6 Cambridge MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-515 7 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2015-04-12   
443-515 8 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2015-04-12   
443-515 9 Cambridge MD SLBRMDSCXMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 242   2014-11-08   
443-516 A Sykesville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-516 0 Sykesville MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-516 2 Sykesville MD BLTMMDCHW29  4716 PAETEC COMMUNICATIONS, INC. - MD 238   2004-12-22   
443-516 3 Sykesville MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-01   
443-516 4 Sykesville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-516 5 Sykesville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2024-03-22   
443-516 6 Sykesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-09-19   
443-516 7 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-06-02   
443-516 8 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-28   
443-516 9 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-28   
443-517 A Glen Burnie MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-517 1 Glen Burnie MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-517 2 Glen Burnie MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-12-20   
443-517 3 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-04-01   
443-517 5 Glen Burnie MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-05-05   
443-517 6 Glen Burnie MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-517 7 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-12-02   
443-517 8 Glen Burnie MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2008-04-21   
443-517 9 Glen Burnie MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-12-06   
443-518 A Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
443-518 0 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-518 1 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 2 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 3 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 4 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 5 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 6 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-518 7 Columbia MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2010-04-08   
443-518 8 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-03-29   
443-518 9 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   
443-519 A Towson MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-519 0 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-12-17   
443-519 1 Towson MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-519 2 Towson MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-12-28   
443-519 3 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-05-01   
443-519 4 Towson MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-519 5 Towson MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-04-30   
443-519 6 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-519 7 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-519 8 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-519 9 Towson MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-06-01   
443-520 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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