Local Calling Guide

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

NXX: 740

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-740 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-740 0 Gaithersburg MD BTVLMD12CMA  5562 METROPCS, INC. 236   2004-11-29   
301-740 1 Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236   2004-07-02   
301-740 2 Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236   2004-07-02   
301-740 3 Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236   2004-07-02   
301-740 4 Gaithersburg MD BTVLMD12CMA  5562 METROPCS, INC. 236   2005-04-07   
301-740 5 Gaithersburg MD BTVLMD12CMA  5562 METROPCS, INC. 236   2006-02-05   
301-740 6 Gaithersburg MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2011-09-02   
301-740 7 Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236   2006-03-30   
301-740 8 Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236   2006-03-30   
301-740 9 Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236   2006-03-30   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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