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: FARGNDBCTMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
701-895 6 Casselton ND 508J CENTURYLINK COMMUNICATIONS, LLC 636   2017-05-30   
701-899 7 Wahpeton ND 508J CENTURYLINK COMMUNICATIONS, LLC 636   2017-06-02   
701-922 4 Grafton ND 508J CENTURYLINK COMMUNICATIONS, LLC 636   2017-05-31   
701-935 6 Emerado ND 508J CENTURYLINK COMMUNICATIONS, LLC 636   2017-05-31   
701-963 7 Hatton ND 508J CENTURYLINK COMMUNICATIONS, LLC 636   2017-05-31   
701-969 6 Hickson ND 508J CENTURYLINK COMMUNICATIONS, LLC 636   2017-05-31   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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