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: 318 [Rate centres in NPA 318] [Dial plan for NPA 318]


NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-743 A Doyline LA SHPTLAMADS3  3807 NETWORK TELEPHONE CORPORATION - LA 486   2005-06-20   
318-743 6 Doyline LA   3807 NETWORK TELEPHONE CORPORATION - LA 486      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.