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: 280

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-280 A Annapolis MD ANNPMDANDS0  9212 VERIZON MARYLAND, INC. 238      
410-280 0 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 1 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 2 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 3 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 4 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 5 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 6 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 7 Annapolis MD   876D ONVOY, LLC - MD 238   2016-03-09   
410-280 8 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
410-280 9 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      

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

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