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.

Collinwood, TN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
931-600 A NSVLTNMT83Z  525E ONVOY, LLC - TN 470      
931-600 0   965H FRACTEL, LLC 470   2020-08-08   
931-600 1   624H ONVOY SPECTRUM, LLC 470   2024-12-15   
931-600 2   525E ONVOY, LLC - TN 470   2021-04-11   
931-600 3   525E ONVOY, LLC - TN 470   2021-04-11   
931-600 5   525E ONVOY, LLC - TN 470   2021-10-24   
931-600 6   525E ONVOY, LLC - TN 470   2019-12-19   
931-600 8   792K CHARTER IP ENABLED SERVICES, LLC 470   2021-01-18   
931-600 9   525E ONVOY, LLC - TN 470   2023-10-29   
931-724 A CNWDTNXAPS0  0575 TENNESSEE TEL. CO. 470      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.