Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-246 6 Gaithersburg MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-01-03   
240-247 7 Washington Zone 3 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2003-11-04   
240-252 0 Gaithersburg MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-03-03   
240-252 8 Gaithersburg MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-09-18   
240-252 9 Gaithersburg MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-03-03   
240-256 0 Leonardtown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2003-02-27   
240-256 5 Leonardtown MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-05-16   
240-263 A Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2024-02-19   
240-263 2 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-07-25   
240-263 3 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-07-25   
240-263 4 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-07-25   
240-263 5 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-04-14   
240-263 6 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-04-14   
240-263 7 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-04-14   
240-263 8 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-04-14   
240-265 9 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-12-04   
240-270 3 Waldorf MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2012-01-10   
240-271 A Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-272 0 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-06-01   
240-272 1 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-06-01   
240-272 3 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-07-25   
240-272 4 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-06-12   
240-272 5 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-07-25   
240-272 6 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-07-25   
240-272 9 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-12-04   
240-274 A Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-280 4 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-19   
240-280 5 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-280 6 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-07-30   
240-280 9 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-12-24   
240-281 A Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 0 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 1 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 2 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 3 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 4 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 5 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 6 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 7 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 8 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-281 9 Washington Zone 2 MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-300 1 Waldorf MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2011-04-21   
240-300 2 Waldorf MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2011-04-21   
240-300 3 Waldorf MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2011-05-21   
240-302 A Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-302 3 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2017-03-20   
240-302 4 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-11-28   
240-302 5 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-11-28   
240-302 6 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-11-28   
240-302 7 Laurel MD 4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-11-28   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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