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: 442

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-442 A Ellicott City MD GLWDMDGDRS1  9212 VERIZON MARYLAND, INC. 238      
410-442 0 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 1 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 2 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 3 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 4 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 5 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 6 Ellicott City MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-05-22   
410-442 7 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 8 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      
410-442 9 Ellicott City MD   9212 VERIZON MARYLAND, INC. 238      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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