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
301-640 0 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-05-20   
301-640 1 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-06-16   
301-640 6 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-08-17   
301-640 8 Washington Zone 10 MD 5562 METROPCS, INC. 236   2013-08-06   
301-640 9 Washington Zone 10 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-05-20   
301-658 4 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-02-05   
301-658 8 Ashton MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-09-04   
301-659 9 Waldorf MD 5562 METROPCS, INC. 236   2008-02-20   
301-664 0 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-10-14   
301-664 3 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-08-06   
301-672 A Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 0 Lexington Park-Great Mills MD 5562 METROPCS, INC. 236      
301-672 1 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 2 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 3 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 4 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 5 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 6 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 7 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 8 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-672 9 Lexington Park-Great Mills MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 A Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 0 Washington Zone 2 MD 5562 METROPCS, INC. 236      
301-674 1 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 2 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 3 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 4 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 5 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 6 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 7 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 8 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-674 9 Washington Zone 2 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-675 A Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-679 8 Washington Zone 12 MD 5562 METROPCS, INC. 236   2013-08-14   
301-679 9 Washington Zone 12 MD 5562 METROPCS, INC. 236   2013-06-16   
301-683 4 Washington Zone 4 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
301-686 4 Washington Zone 6 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-10-12   
301-701 0 Washington Zone 13 MD 5562 METROPCS, INC. 236   2018-04-08   
301-710 2 Waldorf MD 5562 METROPCS, INC. 236   2010-11-10   
301-710 3 Waldorf MD 5562 METROPCS, INC. 236   2010-11-10   
301-710 4 Waldorf MD 5562 METROPCS, INC. 236   2010-11-10   
301-710 7 Waldorf MD 5562 METROPCS, INC. 236   2010-11-10   
301-710 8 Waldorf MD 5562 METROPCS, INC. 236   2010-11-10   
301-720 2 Brandywine MD 5562 METROPCS, INC. 236   2019-07-11   
301-728 A Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-740 0 Gaithersburg MD 5562 METROPCS, INC. 236   2004-11-29   
301-747 5 Washington Zone 6 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-06-16   
301-747 8 Washington Zone 6 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2011-02-07   
301-753 0 Washington Zone 6 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-09-29   
301-755 3 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-09-30   

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

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