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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-365 0 Salisbury MD   242      
443-365 1 Salisbury MD   242      
443-365 6 Salisbury MD   242      
443-365 8 Salisbury MD   242   2013-12-09   
443-365 9 Salisbury MD   242      
443-371 1 Bel Air MD   238   2016-02-06   
443-374 1 Aberdeen MD   236   2020-06-24   
443-374 2 Aberdeen MD   236   2020-06-24   
443-374 5 Aberdeen MD   236   2020-06-24   
443-374 7 Aberdeen MD   236   2011-08-08   
443-374 8 Aberdeen MD   236   2011-08-08   
443-388 4 Baltimore MD   238   2006-07-24   
443-403 9 Aberdeen MD   236   2013-01-25   
443-410 1 Glen Burnie MD   238   2014-05-30   
443-410 2 Glen Burnie MD   238   2014-05-30   
443-410 5 Glen Burnie MD   238   2014-11-08   
443-410 6 Glen Burnie MD   238   2014-11-08   
443-410 8 Glen Burnie MD   238   2014-11-08   
443-410 9 Glen Burnie MD   238   2014-11-08   
443-422 8 Glen Burnie MD   238   2010-12-03   
443-431 0 Randallstown MD   238   2020-04-06   
443-432 8 Prince Frederick MD   238   2014-10-10   
443-432 9 Prince Frederick MD   238   2013-12-27   
443-449 0 Baltimore MD   238   2007-07-22   
443-449 1 Baltimore MD   238   2007-07-22   
443-449 3 Baltimore MD   238   2008-04-08   
443-449 4 Baltimore MD   238   2008-06-16   
443-449 8 Baltimore MD   238   2007-08-17   
443-449 9 Baltimore MD   238   2007-08-17   
443-450 8 Pikesville MD   238   2014-12-13   
443-453 1 Baltimore MD   238   2008-06-16   
443-453 2 Baltimore MD   238   2008-06-16   
443-453 3 Baltimore MD   238   2008-06-16   
443-453 4 Baltimore MD   238   2008-06-16   
443-453 6 Baltimore MD   238   2008-06-16   
443-453 7 Baltimore MD   238   2008-06-16   
443-453 8 Baltimore MD   238   2008-06-16   
443-454 A Annapolis MD BLTMMDCH40Z  238      
443-454 0 Annapolis MD   238      
443-454 2 Annapolis MD   238      
443-454 3 Annapolis MD   238      
443-454 4 Annapolis MD   238      
443-454 5 Annapolis MD   238      
443-454 6 Annapolis MD   238      
443-454 7 Annapolis MD   238      
443-454 9 Annapolis MD   238      
443-455 0 Baltimore MD   238   2008-06-16   
443-460 8 Essex MD   238   2008-03-31   
443-470 0 Towson MD   238   2008-08-18   
443-470 2 Towson MD   238   2008-10-23   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 >>

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.