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: 319

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-319 A Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-319 0 Baltimore MD BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238   2004-02-15   
410-319 1 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-319 2 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2019-02-02   
410-319 3 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-319 4 Baltimore MD   145J TERRA NOVA TELECOM INC. 238   2021-09-24   
410-319 5 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-319 6 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-319 7 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-319 8 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      
410-319 9 Baltimore MD BLTMMDHMDS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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