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: ESTNMDESMMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-200 2 Easton MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-226 1 Oxford MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-304 A Queenstown MD 228C IDT AMERICA, CORP. - MD 242      
410-304 2 Queenstown MD 228C IDT AMERICA, CORP. - MD 242   2006-05-20   
410-348 3 Still Pond MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-364 3 Hillsboro MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-438 6 Sudlersville MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-476 6 Trappe MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-482 3 Greensboro MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-556 2 Church Hill MD 228C IDT AMERICA, CORP. - MD 242   2006-05-06   
410-634 4 Ridgely MD 228C IDT AMERICA, CORP. - MD 242   2012-06-01   
410-639 4 Rock Hall MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-648 1 Galena MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-745 8 St Michaels MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-755 0 Warwick MD 228C IDT AMERICA, CORP. - MD 242   2012-07-07   
410-885 7 Chesapeake City MD 228C IDT AMERICA, CORP. - MD 242   2012-01-08   
410-886 1 Tilghman MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-928 2 Millington MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
443-249 3 Stevensville MD 228C IDT AMERICA, CORP. - MD 242   2006-05-21   
443-249 5 Stevensville MD 228C IDT AMERICA, CORP. - MD 242   2012-12-21   
443-262 8 Centreville MD 228C IDT AMERICA, CORP. - MD 242   2006-05-06   
443-282 0 Chestertown MD 228C IDT AMERICA, CORP. - MD 242   2006-05-06   
443-972 7 Cambridge MD 228C IDT AMERICA, CORP. - MD 242   2018-01-14   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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