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: 251 [Rate centres in NPA 251] [Dial plan for NPA 251]

NXX: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-291 A Melvin AL JCSNMSPSX4Y  072F BANDWIDTH.COM CLEC, LLC - AL 482      
251-291 0 Melvin AL   072F BANDWIDTH.COM CLEC, LLC - AL 482   2020-07-12   
251-291 1 Melvin AL   604E ONVOY, LLC - AL 482   2022-11-28   
251-291 2 Melvin AL   604E ONVOY, LLC - AL 482   2020-07-13   
251-291 3 Melvin AL   604E ONVOY, LLC - AL 482   2020-07-13   
251-291 4 Melvin AL   604E ONVOY, LLC - AL 482   2021-01-22   
251-291 5 Melvin AL   604E ONVOY, LLC - AL 482   2021-01-22   
251-291 6 Melvin AL   604E ONVOY, LLC - AL 482   2021-01-22   
251-291 7 Melvin AL   604E ONVOY, LLC - AL 482   2021-01-22   
251-291 8 Melvin AL   604E ONVOY, LLC - AL 482   2021-01-22   
251-291 9 Melvin AL   072F BANDWIDTH.COM CLEC, LLC - AL 482   2021-08-15   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.