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: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-372 A Washington Zone 16 MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 0 Washington Zone 16 MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 1 Washington Zone 16 MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 2 Washington Zone 16 MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 3 Washington Zone 16 MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 4 Washington Zone 16 MD   2593 CORE COMMUNICATIONS, INC.- MD 236      
301-372 5 Washington Zone 16 MD WASHDCMTX7X  2697 CTC COMMUNICATIONS CORP. - MD 236      
301-372 6 Washington Zone 16 MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 7 Washington Zone 16 MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236      
301-372 8 Washington Zone 16 MD BRNDMDBERS0  9212 VERIZON MARYLAND, INC. 236      
301-372 9 Washington Zone 16 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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