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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
443-245 3 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 4 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 5 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 6 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 7 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 8 Elkton MD   829J PAETEC ITEL, LLC 238      
443-245 9 Elkton MD   829J PAETEC ITEL, LLC 238      
443-246 A Elkton MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-247 A Union Bridge MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-247 0 Union Bridge MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
443-247 1 Union Bridge MD   829J PAETEC ITEL, LLC 238      
443-247 2 Union Bridge MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
443-247 3 Union Bridge MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-03   
443-247 4 Union Bridge MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-28   
443-247 5 Union Bridge MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-28   
443-247 6 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-247 7 Union Bridge MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-247 8 Union Bridge MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-247 9 Union Bridge MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-248 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-248 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-03-09   
443-248 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-04-15   
443-248 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-04-15   
443-248 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-05-03   
443-248 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2007-05-03   
443-248 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-04   
443-248 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-04   
443-248 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-248 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-248 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2007-06-16   
443-249 A Stevensville MD RMCKMDRRRS0  9212 VERIZON MARYLAND, INC. 242      
443-249 0 Stevensville MD RMCKMDRRRS0  9212 VERIZON MARYLAND, INC. 242      
443-249 1 Stevensville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
443-249 2 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
443-249 3 Stevensville MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-21   
443-249 4 Stevensville MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2011-01-03   
443-249 5 Stevensville MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2012-12-21   
443-249 6 Stevensville MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-249 7 Stevensville MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2004-06-12   
443-249 8 Stevensville MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2006-08-28   
443-249 9 Stevensville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2024-03-07   
443-250 A Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 2 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 3 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 4 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 5 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 6 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 7 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-250 9 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-251 A Catonsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-251 0 Catonsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-05   
443-251 1 Catonsville MD   515J IP HORIZON LLC 238   2013-10-11   
443-251 2 Catonsville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-02-12   
443-251 3 Catonsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-251 4 Catonsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-12-31   
443-251 5 Catonsville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2014-08-21   
443-251 6 Catonsville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-12-13   
443-251 7 Catonsville MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-04-02   
443-251 8 Catonsville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2014-10-10   
443-251 9 Catonsville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2013-12-09   
443-252 A Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-252 0 Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2009-11-06   
443-252 1 Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2010-06-12   
443-252 2 Perryville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-252 3 Perryville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2011-03-11   
443-252 4 Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-05-02   
443-252 5 Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2015-10-01   
443-252 6 Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-01-04   
443-252 7 Perryville MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2011-07-15   
443-252 8 Perryville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-252 9 Perryville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-253 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-254 A Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-255 A Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-256 A North East MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-256 0 North East MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2019-07-14   
443-256 1 North East MD   829J PAETEC ITEL, LLC 238      
443-256 2 North East MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2019-03-31   
443-256 3 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-06-15   
443-256 4 North East MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-20   
443-256 5 North East MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-20   
443-256 6 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-11-03   
443-256 7 North East MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-256 8 North East MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-10-01   
443-256 9 North East MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2014-11-03   
443-257 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 0 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 1 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 2 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 3 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 4 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 5 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 6 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 7 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
443-257 8 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-07-18   
443-257 9 Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2003-07-18   
443-258 A Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      

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

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