Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-938 5 Baltimore MD   238   2007-11-11   
443-938 6 Baltimore MD   238   2007-11-11   
443-938 7 Baltimore MD   238   2007-11-11   
443-938 8 Baltimore MD   238   2007-11-11   
443-939 A Baltimore MD BLTMMDCH40Z  238      
443-939 0 Baltimore MD   238      
443-939 1 Baltimore MD   238      
443-939 2 Baltimore MD   238   2004-08-09   
443-939 3 Baltimore MD   238   2004-01-11   
443-939 4 Baltimore MD   238   2004-05-06   
443-939 5 Baltimore MD   238   2004-05-06   
443-939 6 Baltimore MD   238   2004-05-06   
443-939 7 Baltimore MD   238   2004-05-27   
443-939 8 Baltimore MD   238   2004-05-27   
443-939 9 Baltimore MD   238      
443-946 0 Parkville MD   238   2020-04-06   
443-953 8 Salisbury MD   242   2014-03-22   
443-953 9 Salisbury MD   242   2014-03-22   
443-960 1 Glen Burnie MD   238   2016-02-06   
443-960 2 Glen Burnie MD   238   2016-02-06   
443-960 9 Glen Burnie MD   238   2016-04-12   
443-962 4 Glen Burnie MD   238   2008-02-04   
443-962 5 Glen Burnie MD   238   2008-02-04   
443-962 8 Glen Burnie MD   238   2008-04-21   
443-962 9 Glen Burnie MD   238   2008-04-21   
443-968 1 Prince Frederick MD   238   2003-01-24   
443-968 6 Prince Frederick MD   238   2003-01-24   
443-972 0 Cambridge MD   242   2016-04-12   
443-972 1 Cambridge MD   242   2016-04-12   
443-972 8 Cambridge MD   242   2020-04-12   
443-978 1 Salisbury MD   242   2016-07-14   
443-978 9 Salisbury MD   242   2016-07-14   
443-983 A Baltimore MD BLTMMDCH40Z  238      
443-983 0 Baltimore MD   238      
443-983 1 Baltimore MD   238      
443-983 2 Baltimore MD   238      
443-983 3 Baltimore MD   238      
443-983 4 Baltimore MD   238      
443-983 5 Baltimore MD   238      
443-983 6 Baltimore MD   238      
443-983 7 Baltimore MD   238      
443-983 8 Baltimore MD   238      
443-983 9 Baltimore MD   238      
443-985 A Randallstown MD BLTMMDCH40Z  238      
443-985 0 Randallstown MD   238      
443-985 1 Randallstown MD   238      
443-985 2 Randallstown MD   238   2011-08-08   
443-985 3 Randallstown MD   238   2013-12-27   
443-985 4 Randallstown MD   238   2014-09-21   
443-985 5 Randallstown MD   238   2015-03-16   

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Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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