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: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 382

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-382 A Sneedville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-382 0 Sneedville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-382 1 Sneedville TN KNVNTNEC0MD  073H TELNYX LLC 474   2018-09-21   
423-382 2 Sneedville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2018-11-24   
423-382 6 Sneedville TN KNVNTNEC2MD  939H COMMIO, LLC 474   2019-10-30   
423-382 7 Sneedville TN KNVLTNMAYIX  506J TWILIO INTERNATIONAL, INC. 474   2021-11-03   
423-382 8 Sneedville TN KNVLTNMAY8X  624H ONVOY SPECTRUM, LLC 474   2023-06-17   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.