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: 369 [Rate centres in NPA 369] [Dial plan for NPA 369]

NXX: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
369-233 A Lakeport CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-08-29   
369-233 9 Lakeport CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2025-08-29   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.