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: BOISIDMAXNX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
986-400 7 Cascade ID 808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2020-11-10   
986-497 6 Idaho Falls ID 808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2019-06-06   
986-800 6 Idaho Falls ID 808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2024-03-07   
986-996 5 Boise ID 808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2025-08-22   
986-996 6 Boise ID 808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2025-08-22   
986-996 7 Boise ID 808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2025-08-22   
986-996 8 Boise ID 808G TELEPORT COMMUNICATIONS AMERICA, LLC - ID 652   2025-08-22   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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