Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-272 A Washington Zone 2 MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236      
301-272 0 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2008-02-21   
301-272 1 Washington Zone 2 MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236      
301-272 2 Washington Zone 2 MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236      
301-272 3 Washington Zone 2 MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236      
301-272 4 Washington Zone 2 MD   6664 SPRINT SPECTRUM L.P. 236   2008-12-01   
301-272 5 Washington Zone 2 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-08   
301-272 6 Washington Zone 2 MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236      
301-272 7 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2008-02-21   
301-272 8 Washington Zone 2 MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236      
301-272 9 Washington Zone 2 MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 236      

Last updated: Sun, 29 Sep 2019 14:17:11 UTC

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