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: CLWLIDMADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
208-453 A Caldwell ID 9636 QWEST CORPORATION 652      
208-453 0 Caldwell ID 9636 QWEST CORPORATION 652      
208-453 1 Caldwell ID 9636 QWEST CORPORATION 652      
208-453 2 Caldwell ID 9636 QWEST CORPORATION 652      
208-453 3 Caldwell ID 9636 QWEST CORPORATION 652      
208-453 4 Caldwell ID 9636 QWEST CORPORATION 652      
208-453 5 Caldwell ID 9636 QWEST CORPORATION 652      
208-453 8 Caldwell ID 9636 QWEST CORPORATION 652      
208-453 9 Caldwell ID 9636 QWEST CORPORATION 652      
208-454 A Caldwell ID 9636 QWEST CORPORATION 652      
208-455 A Caldwell ID 9636 QWEST CORPORATION 652      
208-459 A Caldwell ID 9636 QWEST CORPORATION 652      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.