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: SLBRMDSCXLX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
410-253 A Easton MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-330 A Cambridge MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-422 A Salisbury MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-603 A Salisbury MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-714 A Easton MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-739 A Centreville MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-239 A Easton MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242   2004-03-12   
443-258 A Easton MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-298 A Easton MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-513 A Berlin MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-735 A Salisbury MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
443-736 A Salisbury MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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