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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
443-291 8 Hampstead MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-291 9 Hampstead MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-292 A Crofton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-292 0 Crofton MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-292 1 Crofton MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2006-07-31   
443-292 2 Crofton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-10-14   
443-292 3 Crofton MD   829J PAETEC ITEL, LLC 238   2007-10-03   
443-292 4 Crofton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-292 5 Crofton MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-01-25   
443-292 6 Crofton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-292 7 Crofton MD   829J PAETEC ITEL, LLC 238   2010-10-22   
443-292 8 Crofton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2006-12-29   
443-292 9 Crofton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-06-15   
443-293 A Westminster MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-293 2 Westminster MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-01-20   
443-293 3 Westminster MD   829J PAETEC ITEL, LLC 238   2006-07-14   
443-293 5 Westminster MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-293 6 Westminster MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-09-15   
443-293 7 Westminster MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-02-22   
443-293 8 Westminster MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2007-05-14   
443-294 A West River MD   071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-294 2 West River MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-02-27   
443-294 3 West River MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-07-02   
443-294 5 West River MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2021-03-25   
443-294 6 West River MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-07-19   
443-294 7 West River MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-294 8 West River MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-294 9 West River MD   515J IP HORIZON LLC 238   2015-03-23   
443-295 A Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-295 0 Prince Frederick MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-04-02   
443-295 1 Prince Frederick MD   829J PAETEC ITEL, LLC 238   2004-02-05   
443-295 2 Prince Frederick MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2006-07-31   
443-295 3 Prince Frederick MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-295 4 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-295 5 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2012-07-06   
443-295 6 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-03-04   
443-295 7 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-295 8 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-06-06   
443-295 9 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-13   
443-296 A Waterloo MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-296 0 Waterloo MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-12-02   
443-296 2 Waterloo MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-296 3 Waterloo MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-01-02   
443-296 5 Waterloo MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-296 6 Waterloo MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2009-07-11   
443-296 7 Waterloo MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-296 8 Waterloo MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2005-08-14   
443-296 9 Waterloo MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2005-08-14   
443-297 A Arbutus MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-297 0 Arbutus MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
443-297 1 Arbutus MD   829J PAETEC ITEL, LLC 238   2012-05-14   
443-297 2 Arbutus MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-08-12   
443-297 3 Arbutus MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-297 4 Arbutus MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2013-08-12   
443-297 5 Arbutus MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
443-297 6 Arbutus MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-297 7 Arbutus MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-297 8 Arbutus MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2002-01-09   
443-297 9 Arbutus MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
443-298 A Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-298 0 Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2003-01-06   
443-298 1 Easton MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2004-12-27   
443-298 2 Easton MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2024-07-15   
443-298 3 Easton MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2018-10-22   
443-298 4 Easton MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-09-12   
443-298 8 Easton MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-15   
443-298 9 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2016-08-06   
443-299 A Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-299 2 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2004-11-04   
443-299 3 Fallston MD   145J TERRA NOVA TELECOM INC. 238   2021-01-27   
443-299 5 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2024-07-07   
443-299 6 Fallston MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-299 7 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-299 8 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-299 9 Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2005-01-02   
443-300 A Sykesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-300 0 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
443-300 1 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-04-29   
443-300 2 Sykesville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-300 3 Sykesville MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-300 4 Sykesville MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-06-26   
443-300 6 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-300 7 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-03   
443-300 8 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-28   
443-300 9 Sykesville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
443-301 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-301 0 Baltimore MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2013-10-01   
443-301 1 Baltimore MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2013-10-01   
443-301 2 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 3 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 8 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-301 9 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-06-07   
443-302 A Crofton MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-302 0 Crofton MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-302 2 Crofton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-03-20   
443-302 3 Crofton MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-05-21   

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

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