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.

NPA: 208 [Rate centres in NPA 208] [Dial plan for NPA 208]

NXX: 517

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
208-517 A Cottonwood ID SPKNWA01XGY  478J NUSO, LLC 676      
208-517 0 Cottonwood ID   689F ONVOY, LLC - ID 676   2021-12-13   
208-517 1 Cottonwood ID   478J NUSO, LLC 676   2020-10-26   
208-517 2 Cottonwood ID   478J NUSO, LLC 676   2024-01-04   
208-517 3 Cottonwood ID   624H ONVOY SPECTRUM, LLC 676   2021-11-12   
208-517 4 Cottonwood ID   624H ONVOY SPECTRUM, LLC 676   2021-11-12   
208-517 5 Cottonwood ID   689F ONVOY, LLC - ID 676   2021-03-08   
208-517 6 Cottonwood ID   689F ONVOY, LLC - ID 676   2021-10-02   
208-517 7 Cottonwood ID   689F ONVOY, LLC - ID 676   2021-03-08   
208-517 8 Cottonwood ID   624H ONVOY SPECTRUM, LLC 676   2021-07-24   
208-517 9 Cottonwood ID   689F ONVOY, LLC - ID 676   2023-07-22   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.