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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Challis, ID

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
208-879 A CHLSIDXCDS0  2218 CUSTER TEL. COOP., INC. 652      
986-455 A BOISIDPZ9MD  965H FRACTEL LLC 652      
986-455 2 BOISIDPZ0MD  516J TON80 COMMUNICATIONS LLC 652   2021-07-22   
986-455 5 BOISIDPZ9MD  965H FRACTEL LLC 652   2020-11-30   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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