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: 515

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-515 A Bay Minette AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480      
251-515 0 Bay Minette AL   604E ONVOY, LLC - AL 480   2021-07-25   
251-515 1 Bay Minette AL   604E ONVOY, LLC - AL 480   2021-07-25   
251-515 2 Bay Minette AL   604E ONVOY, LLC - AL 480   2021-07-25   
251-515 3 Bay Minette AL   604E ONVOY, LLC - AL 480   2021-07-25   
251-515 4 Bay Minette AL   604E ONVOY, LLC - AL 480   2021-07-29   
251-515 5 Bay Minette AL   604E ONVOY, LLC - AL 480   2021-07-29   
251-515 6 Bay Minette AL   624H ONVOY SPECTRUM, LLC 480   2022-02-19   
251-515 7 Bay Minette AL   624H ONVOY SPECTRUM, LLC 480   2021-11-30   
251-515 8 Bay Minette AL   624H ONVOY SPECTRUM, LLC 480   2021-09-29   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.