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: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-579 A Brandywine MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      
301-579 0 Brandywine MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2019-12-16   
301-579 1 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-579 2 Brandywine MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      
301-579 3 Brandywine MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
301-579 4 Brandywine MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-03-24   
301-579 5 Brandywine MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-13   
301-579 6 Brandywine MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      
301-579 7 Brandywine MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-03   
301-579 8 Brandywine MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-03   
301-579 9 Brandywine MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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