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: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
208-923 A Garden Valley ID BOISIDMAXIX  689F ONVOY, LLC - ID 652      
208-923 0 Garden Valley ID BOISIDMAX7Y  073H TELNYX LLC 652   2020-06-07   
208-923 1 Garden Valley ID BOISIDMAXYX  192F BANDWIDTH.COM CLEC, LLC - ID 652   2022-01-29   
208-923 2 Garden Valley ID BOISIDMAXIX  689F ONVOY, LLC - ID 652   2019-09-13   
208-923 3 Garden Valley ID BOISIDMAXIX  689F ONVOY, LLC - ID 652   2019-09-13   
208-923 4 Garden Valley ID BOISIDMAXIX  689F ONVOY, LLC - ID 652   2018-09-06   
208-923 5 Garden Valley ID BOISIDMAX5Y  624H ONVOY SPECTRUM, LLC 652   2025-01-18   
208-923 8 Garden Valley ID BOISIDMAXIX  689F ONVOY, LLC - ID 652   2023-07-24   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.