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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-344 8 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-01-09   
240-344 9 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-01-12   
240-357 2 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-10-03   
240-357 9 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2021-10-17   
240-367 4 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-03-24   
240-367 5 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-03-24   
240-382 0 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2010-03-19   
240-394 A Mount Airy MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-394 0 Mount Airy MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-02-03   
240-394 2 Mount Airy MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-02-03   
240-409 A Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-440 A Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-440 0 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2009-05-19   
240-440 1 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2009-05-19   
240-440 2 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2009-06-09   
240-440 3 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2010-07-06   
240-442 7 Oakland MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-06-11   
240-469 7 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2008-12-20   
240-500 4 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-10-10   
240-500 5 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-10-10   
240-500 6 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2011-10-10   
240-520 0 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-09-01   
240-520 1 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-01-25   
240-520 2 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-01-25   
240-520 3 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-05-15   
240-522 3 Cumberland MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-09-25   
240-522 4 Cumberland MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2008-03-07   
240-522 5 Cumberland MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2008-04-02   
240-522 6 Cumberland MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2008-07-17   
240-522 7 Cumberland MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2008-11-17   
240-522 8 Cumberland MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2009-05-29   
240-527 1 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-05-14   
240-527 4 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-04-14   
240-527 5 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-04-14   
240-529 2 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-01-09   
240-529 3 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-06-13   
240-529 4 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-06-13   
240-529 5 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2005-11-07   
240-529 6 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-01-06   
240-529 7 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-02-04   
240-529 8 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-02-05   
240-537 9 Hagerstown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2019-07-26   
240-549 4 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2016-08-03   
240-566 2 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2006-09-01   
240-574 A Friendsville MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
240-574 9 Friendsville MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2020-10-11   
240-575 8 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-08-20   
240-586 0 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-11-16   
240-586 1 Frederick MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2007-11-16   
240-589 A McCoole MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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