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: SLBRMDSBXAY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-226 3 Oxford MD 829J PAETEC ITEL, LLC 242   2014-05-30   
410-275 6 Cecilton MD 829J PAETEC ITEL, LLC 242   2014-11-08   
410-304 5 Queenstown MD 829J PAETEC ITEL, LLC 242   2012-07-26   
410-390 4 Ocean City MD 829J PAETEC ITEL, LLC 242   2012-07-26   
410-600 1 Berlin MD 829J PAETEC ITEL, LLC 242   2014-09-04   
410-604 7 Stevensville MD 829J PAETEC ITEL, LLC 242   2013-03-25   
410-621 8 Princess Anne MD 829J PAETEC ITEL, LLC 242   2014-09-04   
443-258 2 Easton MD 829J PAETEC ITEL, LLC 242   2012-07-26   
443-666 2 Chestertown MD 829J PAETEC ITEL, LLC 242   2014-11-08   
443-972 A Cambridge MD 829J PAETEC ITEL, LLC 242   2025-04-01   
443-972 4 Cambridge MD 829J PAETEC ITEL, LLC 242   2012-08-15   
443-988 6 Centreville MD 829J PAETEC ITEL, LLC 242   2016-11-18   
667-226 2 St Michaels MD 829J PAETEC ITEL, LLC 242   2018-01-08   
667-281 2 Salisbury MD 829J PAETEC ITEL, LLC 242   2022-03-21   
667-330 A Salisbury MD 829J PAETEC ITEL, LLC 242   2025-04-01   
667-330 1 Salisbury MD 829J PAETEC ITEL, LLC 242   2012-07-21   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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