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
301-399 4 Waldorf MD 5562 METROPCS, INC. 236      
301-399 5 Waldorf MD 5562 METROPCS, INC. 236      
301-399 6 Waldorf MD 5562 METROPCS, INC. 236      
301-399 7 Waldorf MD 5562 METROPCS, INC. 236      
301-399 8 Waldorf MD 5562 METROPCS, INC. 236      
301-399 9 Waldorf MD 5562 METROPCS, INC. 236      
301-404 A Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 0 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 1 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 2 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 3 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 4 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 5 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 6 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 7 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 8 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-404 9 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-407 3 Gaithersburg MD 5562 METROPCS, INC. 236   2005-07-14   
301-408 6 Washington Zone 3 MD 5562 METROPCS, INC. 236   2011-08-19   
301-408 8 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-06-15   
301-408 9 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-09-04   
301-433 1 Washington Zone 5 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-01-12   
301-433 2 Washington Zone 5 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-06-16   
301-433 3 Washington Zone 5 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-06-16   
301-433 5 Washington Zone 5 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-04-13   
301-433 9 Washington Zone 5 MD 5562 METROPCS, INC. 236   2019-11-29   
301-437 A Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 0 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 1 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 2 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 3 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 4 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 5 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 6 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 7 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 8 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-437 9 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-440 A Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 0 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 1 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 2 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 3 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 4 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 5 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 6 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 7 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 8 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-440 9 Washington Zone 5 MD 5562 METROPCS, INC. 236      
301-442 A Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-442 0 Washington Zone 3 MD 6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      

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

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