Local Calling Guide

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

NXX: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-631 A Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 0 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 1 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 2 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 3 Baltimore MD BLTMMDCHCMD  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2020-10-12   
410-631 4 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 5 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 6 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 7 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 8 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      
410-631 9 Baltimore MD DNDLMDDNDS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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