Local Calling Guide

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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 407

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-407 A Gaithersburg MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-407 0 Gaithersburg MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-407 1 Gaithersburg MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2011-06-10   
301-407 2 Gaithersburg MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-10-23   
301-407 3 Gaithersburg MD BTVLMD127MD  5562 METROPCS, INC. 236   2005-07-14   
301-407 4 Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236   2003-05-10   
301-407 5 Gaithersburg MD BTVLMD127MD  5562 METROPCS, INC. 236   2006-05-05   
301-407 6 Gaithersburg MD CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2011-10-13   
301-407 7 Gaithersburg MD BTVLMD127MD  5562 METROPCS, INC. 236   2005-12-29   
301-407 8 Gaithersburg MD BTVLMD127MD  5562 METROPCS, INC. 236   2006-05-05   
301-407 9 Gaithersburg MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      

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

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