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: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-571 A Annapolis MD PARLMDPADS0  9212 VERIZON MARYLAND, INC. 238      
410-571 0 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-571 1 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-571 2 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-571 3 Annapolis MD   318J COMCAST IP PHONE, LLC 238   2012-06-01   
410-571 4 Annapolis MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-03-16   
410-571 5 Annapolis MD   318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-571 6 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-571 7 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-571 8 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-571 9 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      

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

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