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: BOISIDMAXKY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
208-617 A Boise ID 478J NUSO, LLC 652      
208-617 1 Boise ID 478J NUSO, LLC 652   2020-10-27   
458-252 A Oregon Slope OR 478J NUSO, LLC 652      
458-252 1 Oregon Slope OR 478J NUSO, LLC 652   2020-11-08   
458-252 2 Oregon Slope OR 478J NUSO, LLC 652   2023-12-30   
986-269 5 Boise ID 478J NUSO, LLC 652   2024-01-04   
986-269 6 Boise ID 478J NUSO, LLC 652   2024-01-04   
986-283 0 Boise ID 478J NUSO, LLC 652   2024-08-27   
986-283 1 Boise ID 478J NUSO, LLC 652   2024-08-27   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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