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
301-383 A Washington Zone 14 MD ALXNVAGBPS0  107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236      
301-383 0 Washington Zone 14 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2012-11-03   
301-383 1 Washington Zone 14 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236      
301-383 2 Washington Zone 14 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2016-07-12   
301-383 3 Washington Zone 14 MD   5562 METRO PCS, INC. 236   2016-09-26   
301-383 4 Washington Zone 14 MD   5562 METRO PCS, INC. 236   2017-03-25   
301-383 5 Washington Zone 14 MD   5562 METRO PCS, INC. 236   2016-11-25   
301-383 6 Washington Zone 14 MD   5562 METRO PCS, INC. 236   2017-07-14   
301-383 7 Washington Zone 14 MD   5562 METRO PCS, INC. 236   2017-11-22   
301-383 8 Washington Zone 14 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-383 9 Washington Zone 14 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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