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: 297

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-297 A Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 0 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 1 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 3 Washington Zone 16 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-04-02   
301-297 4 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 5 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 6 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 7 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 8 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      
301-297 9 Washington Zone 16 MD ALTWMDATRP0  9212 VERIZON MARYLAND, INC. 236      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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