Local Calling Guide

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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 9 Elkton MD BLARMDBL1MD  7944 CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD 238      
443-246 A Elkton MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC. - MD 238      
443-247 A Union Bridge MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-247 0 Union Bridge MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
443-247 1 Union Bridge MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 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   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 SLBRMDFSDS0  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 MCI WORLDCOM COMMUNICATIONS, INC. - 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   145J TERRA NOVA TELECOM INC. 242   2021-01-28   
443-250 A Baltimore MD EKRGMD92MMD  6664 SPRINT SPECTRUM L.P. 238      
443-251 A Catonsville MD BLTQMD010MD  082H LOCAL ACCESS LLC - MD 238      
443-251 0 Catonsville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-09-05   
443-251 1 Catonsville MD BLTQMD010MD  082H LOCAL ACCESS LLC - MD 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   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   

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Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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