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
301-692 A Washington Zone 11 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-692 0 Washington Zone 11 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-692 1 Washington Zone 11 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-692 2 Washington Zone 11 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-692 3 Washington Zone 11 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-692 4 Washington Zone 11 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-692 5 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-24   
301-692 6 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-24   
301-692 7 Washington Zone 11 MD   7575 CENTURYLINK COMMUNICATIONS LLC 236   2013-10-01   
301-692 8 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-24   
301-692 9 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-24   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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