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.
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OCN: 772G TELEPORT COMMUNICATIONS AMERICA - ND - LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
701-264 6 Dickinson ND   638   2015-03-16   
701-289 8 Hillsboro ND   636   2018-10-26   
701-313 6 Stanley ND   638   2021-12-13   
701-353 6 Fargo ND   636   2013-01-23   
701-354 A Bismarck ND BSMRNDBCVMD  638      
701-354 6 Bismarck ND   638   2012-06-12   
701-381 7 Devils Lake ND   636   2021-07-19   
701-429 2 Fargo ND   636      
701-441 6 Minot ND   638   2019-10-07   
701-490 5 Valley City ND   636   2018-10-26   
701-561 5 Fargo ND   636   2018-08-06   
701-575 3 Belfield ND   638   2014-07-25   
701-620 6 Grand Forks ND   636   2024-09-14   
701-658 4 Jamestown ND   636   2016-02-12   
701-671 5 Wahpeton ND   636   2013-02-21   
701-681 8 Rugby ND   638   2020-12-02   
701-765 A Grand Forks ND WADNMNWAYMD  636      
701-765 9 Grand Forks ND   636      
701-791 3 Bismarck ND   638   2025-06-20   
701-791 4 Bismarck ND   638   2025-06-20   
701-791 5 Bismarck ND   638   2025-06-20   
701-831 6 Fargo ND   636   2024-02-23   
701-876 6 Beach ND   638   2023-08-07   
701-877 6 Bismarck ND   638   2019-06-07   
701-895 1 Casselton ND   636   2018-10-26   
701-929 2 Fargo ND   636   2016-11-28   
701-961 6 Bismarck ND   638   2024-07-01   

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

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