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]

NXX: 849

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-849 A Lisbon LA SHPTLAMAXMZ  516C AT&T CORP. 486   2024-09-30   
318-849 7 Lisbon LA SHPTLAMAXMZ  516C AT&T CORP. 486   2024-09-30   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.