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: 430

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-430 A Coffeeville AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480      
251-430 0 Coffeeville AL ATMRALXANMD  624H ONVOY SPECTRUM, LLC 480   2021-11-07   
251-430 1 Coffeeville AL ATMRALXANMD  624H ONVOY SPECTRUM, LLC 480   2021-11-07   
251-430 2 Coffeeville AL MOBLALAZ24Z  506J TWILIO INTERNATIONAL, INC. 480   2021-04-22   
251-430 3 Coffeeville AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480   2021-03-24   
251-430 4 Coffeeville AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480   2021-03-24   
251-430 5 Coffeeville AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480   2021-03-26   
251-430 6 Coffeeville AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480   2021-03-26   
251-430 7 Coffeeville AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480   2021-03-26   
251-430 8 Coffeeville AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480   2021-07-29   
251-430 9 Coffeeville AL MOBLALMTX9X  939H COMMIO, LLC 480   2022-10-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.