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: STATIDMADS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
208-372 A Idaho Falls ID 7870 BLACKFOOT COMMUNICATIONS, INC. - MT 652      
208-458 A St Anthony ID 2222 FREMONT TELCOM CO. 652      
208-558 A Island Park ID 2222 FREMONT TELCOM CO. 652      
208-612 A Idaho Falls ID 7870 BLACKFOOT COMMUNICATIONS, INC. - MT 652      
208-624 A St Anthony ID 2222 FREMONT TELCOM CO. 652      
208-652 A Ashton ID 2222 FREMONT TELCOM CO. 652      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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