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.


NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
218-456 A Halstad MN HLSTMNXH45G  636      
218-857 A Climax MN CLMXMNXCRS8  636      
218-886 A Shelly MN SHLYMNXSRS8  636      
218-891 A Fisher MN FSHRMNXFRS8  636      
218-893 A Bygland MN BYLDMNXB89G  636      
218-946 A Nielsville MN NLVLMNXNRS9  636      
701-457 A West Halstad ND HLSTMNXH45G  636      
701-856 A West Climax ND CLMXMNXCRS8  636      
701-887 A West Shelly ND SHLYMNXSRS8  636      
701-942 A West Nielsville ND NLVLMNXNRS9  636      

Last updated: Sat, 25 Feb 2023 02:10:49 UTC

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