Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 405

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-405 A Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-405 0 Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-405 1 Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-405 2 Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-405 3 Fork MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
410-405 4 Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-405 5 Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-405 6 Fork MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
410-405 7 Fork MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-405 8 Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      
410-405 9 Fork MD FORKMDFKRS1  9212 VERIZON MARYLAND, INC. 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.