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.

Switch: SLBRMDSBXUX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-275 7 Cecilton MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-20   
410-390 A Ocean City MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242      
410-390 6 Ocean City MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2009-08-10   
410-482 1 Greensboro MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-20   
410-600 6 Berlin MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-20   
410-648 8 Galena MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-20   
410-745 7 St Michaels MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
410-831 6 Salisbury MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-20   
443-249 6 Stevensville MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-258 6 Easton MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-434 6 Federalsburg MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-437 A Pocomoke MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242      
443-437 6 Pocomoke MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-05-01   
443-448 6 Denton MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-06-25   
443-515 6 Cambridge MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-07-13   
443-566 7 Chesapeake City MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-23   
443-666 6 Chestertown MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2014-10-20   
443-706 7 Crisfield MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2016-10-10   
443-888 7 Princess Anne MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2016-04-08   
667-285 6 Hurlock MD 7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2018-01-05   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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