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.

Switch: DVLKNDAMDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
701-249 A Esmond ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-324 A Harvey ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-438 A Maddock ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-465 A Drake ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-466 A Leeds ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-473 A Minnewaukan ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-542 A Balta ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-547 A Fessenden ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-583 A Knox ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-592 A Leeds ND 1447 NORTH DAKOTA TELEPHONE CO. 638      
701-776 A Rugby ND 1447 NORTH DAKOTA TELEPHONE CO. 638      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.