Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Washington Zone 13, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
301-953 7 LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-953 8 LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-953 9 LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-982 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-993 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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