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
301-780 A Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 0 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 1 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 2 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 3 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 4 Washington Zone 15 MD   876D ONVOY, LLC - MD 236   2017-07-12   
301-780 5 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 6 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 7 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 8 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      
301-780 9 Washington Zone 15 MD   9212 VERIZON MARYLAND, INC. 236      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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