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: 773

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-773 A Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 0 Cockeysville MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-773 1 Cockeysville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 2 Cockeysville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 3 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 4 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 5 Cockeysville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 6 Cockeysville MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
410-773 7 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 8 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-773 9 Cockeysville MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-05-08   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.