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
301-888 A Washington Zone 16 MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      
301-888 0 Washington Zone 16 MD   876D ONVOY, LLC - MD 236   2017-07-19   
301-888 1 Washington Zone 16 MD   9212 VERIZON MARYLAND, INC. 236      
301-888 2 Washington Zone 16 MD   9212 VERIZON MARYLAND, INC. 236      
301-888 3 Washington Zone 16 MD   876D ONVOY, LLC - MD 236   2017-08-13   
301-888 4 Washington Zone 16 MD   876D ONVOY, LLC - MD 236   2017-07-28   
301-888 5 Washington Zone 16 MD   912D BROADVOX-CLEC, LLC - MD 236   2014-10-27   
301-888 6 Washington Zone 16 MD   912D BROADVOX-CLEC, LLC - MD 236   2014-10-27   
301-888 7 Washington Zone 16 MD   876D ONVOY, LLC - MD 236   2017-07-28   
301-888 8 Washington Zone 16 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2012-04-02   
301-888 9 Washington Zone 16 MD   9212 VERIZON MARYLAND, INC. 236      

Last updated: Thu, 31 Jan 2019 11:20:40 UTC

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