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: 914F WIKSTROM TELEPHONE COMPANY, INC. - MN

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
218-275 8 Crookston MN   636   2017-06-22   
218-309 6 East Grand Forks MN   636   2021-06-11   
218-400 2 Warren MN   636   2012-09-22   
218-438 A Argyle MN ARGYMN02RS0  636      
218-438 2 Argyle MN   636      
218-450 A Roseau MN ROSEMN07RS0  636      
218-450 2 Roseau MN   636      
218-480 A Stephen MN STPHMN03RS0  636      
218-480 2 Stephen MN   636      
218-614 A Humboldt MN HLCKMN03RS0  636      
218-614 2 Humboldt MN   636   2023-04-09   
218-633 A Thief River Falls MN TRFLMN19RS0  636      
218-633 2 Thief River Falls MN   636      
218-635 A Baudette MN BDTTMN08RS0  636      
218-635 2 Baudette MN   636      
218-695 7 Oslo MN   636   2013-07-21   
218-774 A Kennedy MN KNDYMNAERS0  636      
218-774 2 Kennedy MN   636      
218-853 A Hallock MN HLCKMN03RS0  636      
218-853 2 Hallock MN   636      
218-960 A Alvarado MN ALVDMN02RS0  636      
218-960 2 Alvarado MN   636      
218-986 A Warroad MN WRRDMN06RS0  636      
218-986 2 Warroad MN   636      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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