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: 334 [Rate centres in NPA 334] [Dial plan for NPA 334]

NXX: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
334-957 A Newville AL DTHNALXAXOX  318J COMCAST IP PHONE, LLC 478      
334-957 0 Newville AL DTHNALXAXOX  318J COMCAST IP PHONE, LLC 478   2007-12-31   
334-957 3 Newville AL DTHNALXAXQX  604E ONVOY, LLC - AL 478   2021-07-31   
334-957 4 Newville AL DTHNALXAXQX  604E ONVOY, LLC - AL 478   2022-03-24   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.