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
443-743 8 Baltimore MD   238   2008-08-18   
443-759 1 Baltimore MD   238   2008-04-08   
443-759 2 Baltimore MD   238   2008-04-08   
443-760 0 Aberdeen MD   236   2003-01-24   
443-760 1 Aberdeen MD   236   2003-01-24   
443-760 2 Aberdeen MD   236   2009-05-14   
443-760 5 Aberdeen MD   236   2003-01-24   
443-760 6 Aberdeen MD   236   2003-01-24   
443-760 7 Aberdeen MD   236   2003-01-24   
443-760 8 Aberdeen MD   236   2003-01-24   
443-761 A Towson MD BLTMMDCH40Z  238   2008-08-02   
443-761 9 Towson MD   238   2008-08-02   
443-763 A Glen Burnie MD BLTMMDCH40Z  238      
443-763 0 Glen Burnie MD   238   2006-01-21   
443-763 1 Glen Burnie MD   238   2006-04-24   
443-763 6 Glen Burnie MD   238   2006-09-09   
443-763 7 Glen Burnie MD   238   2013-07-29   
443-763 9 Glen Burnie MD   238   2016-02-06   
443-764 A Glen Burnie MD BLTMMDCH40Z  238      
443-764 0 Glen Burnie MD   238   2010-09-05   
443-764 1 Glen Burnie MD   238   2010-09-05   
443-764 3 Glen Burnie MD   238   2010-06-18   
443-764 5 Glen Burnie MD   238   2010-11-07   
443-764 9 Glen Burnie MD   238   2009-07-13   
443-769 A Baltimore MD BLTMMDCH40Z  238   2008-11-23   
443-769 9 Baltimore MD   238   2008-11-23   
443-772 5 Essex MD   238   2020-08-23   
443-772 6 Essex MD   238   2020-08-23   
443-779 0 Aberdeen MD   236   2016-02-06   
443-779 9 Aberdeen MD   236   2013-12-27   
443-787 2 Bel Air MD   238   2016-02-06   
443-787 6 Bel Air MD   238   2014-12-13   
443-787 8 Bel Air MD   238   2014-10-10   
443-787 9 Bel Air MD   238   2014-12-13   
443-788 0 Aberdeen MD   236   2020-04-06   
443-788 2 Aberdeen MD   236   2020-09-08   
443-788 5 Aberdeen MD   236   2020-06-24   
443-788 6 Aberdeen MD   236   2020-09-08   
443-788 7 Aberdeen MD   236   2020-05-08   
443-788 8 Aberdeen MD   236   2020-05-08   
443-788 9 Aberdeen MD   236   2020-03-12   
443-793 8 Parkville MD   238   2019-10-07   
443-796 8 Pikesville MD   238   2015-08-14   
443-805 A Glen Burnie MD BLTMMDCH40Z  238   2008-10-02   
443-805 0 Glen Burnie MD   238   2008-10-24   
443-805 3 Glen Burnie MD   238   2014-03-23   
443-805 7 Glen Burnie MD   238   2008-10-03   
443-805 8 Glen Burnie MD   238   2008-10-03   
443-805 9 Glen Burnie MD   238   2008-10-02   
443-813 3 Baltimore MD   238   2008-02-04   

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

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