Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 953

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-953 A Columbia MD CLMAMDSRRS0  9212 VERIZON MARYLAND, INC. 238      
410-953 0 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 1 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 2 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 3 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 4 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 5 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 6 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 7 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 8 Columbia MD   9212 VERIZON MARYLAND, INC. 238      
410-953 9 Columbia MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2010-09-24   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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