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: 601 [Rate centres in NPA 601] [Dial plan for NPA 601]

NXX: 236

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
601-236 A Meridian MS JCSNMSPSX4Y  992E BANDWIDTH.COM CLEC, LLC - MS 482   2024-12-12   
601-236 0 Meridian MS   719E ONVOY, LLC - MS 482   2025-10-12   
601-236 1 Meridian MS   719E ONVOY, LLC - MS 482   2025-11-28   
601-236 2 Meridian MS   719E ONVOY, LLC - MS 482   2026-01-10   
601-236 6 Meridian MS   321J HD CARRIER LLC 482   2026-02-14   
601-236 7 Meridian MS   321J HD CARRIER LLC 482   2026-02-14   
601-236 8 Meridian MS   719E ONVOY, LLC - MS 482   2026-01-04   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.