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: 347

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-347 A Uriah AL ATMRALXAXMD  604E ONVOY, LLC - AL 480      
251-347 0 Uriah AL ATMRALXANMD  624H ONVOY SPECTRUM, LLC 480   2021-08-21   
251-347 1 Uriah AL ATMRALXANMD  624H ONVOY SPECTRUM, LLC 480   2021-08-21   
251-347 2 Uriah AL ATMRALXAXMD  604E ONVOY, LLC - AL 480   2021-07-29   
251-347 3 Uriah AL ATMRALXAXMD  604E ONVOY, LLC - AL 480   2022-03-25   
251-347 4 Uriah AL ATMRALXAXMD  604E ONVOY, LLC - AL 480   2022-11-28   
251-347 5 Uriah AL ATMRALXAXMD  604E ONVOY, LLC - AL 480   2023-03-23   
251-347 6 Uriah AL ATMRALXANMD  624H ONVOY SPECTRUM, LLC 480   2021-11-11   
251-347 7 Uriah AL ATMRALXANMD  624H ONVOY SPECTRUM, LLC 480   2022-03-01   
251-347 8 Uriah AL ATMRALXAXMD  604E ONVOY, LLC - AL 480   2021-03-06   
251-347 9 Uriah AL ATMRALXANMD  624H ONVOY SPECTRUM, LLC 480   2021-11-11   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.