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
301-298 A Washington Zone 15 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-298 0 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2004-03-26   
301-298 1 Washington Zone 15 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-298 2 Washington Zone 15 MD   876D ONVOY, LLC - MD 236   2016-03-14   
301-298 3 Washington Zone 15 MD   876D ONVOY, LLC - MD 236   2016-03-14   
301-298 4 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236   2013-02-25   
301-298 5 Washington Zone 15 MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-03-13   
301-298 6 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2019-04-29   
301-298 7 Washington Zone 15 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2016-11-19   
301-298 8 Washington Zone 15 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-298 9 Washington Zone 15 MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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