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: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-538 A Fork MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-538 0 Fork MD   145J TERRA NOVA TELECOM INC. 238   2024-09-12   
410-538 1 Fork MD   876D ONVOY, LLC - MD 238   2024-03-07   
410-538 2 Fork MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-10-21   
410-538 3 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 4 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 5 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 6 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 7 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 8 Fork MD   9212 VERIZON MARYLAND, INC. 238      
410-538 9 Fork MD   145J TERRA NOVA TELECOM INC. 238   2026-01-04   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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