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: GDFRNDHWGT0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
701-358 A Minto ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-379 A Grafton ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-383 A Hillsboro ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-414 A Mayville ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-431 A Larimore ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-554 A Thompson ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-564 A Manvel ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-569 A Hatton ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-631 A Emerado ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-757 A Grand Forks ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-788 A Mayville ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      
701-841 A Reynolds ND 3065 MIDCONTINENT COMMUNICATIONS - ND 636      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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