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: 350 [Rate centres in NPA 350] [Dial plan for NPA 350]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-231 A Stockton CA   616J LEAP TELECOM, LLC 738   2024-11-22   
350-231 0 Stockton CA   616J LEAP TELECOM, LLC 738      
350-231 8 Stockton CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738      
350-231 9 Stockton CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.