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: 283 [Rate centres in NPA 283] [Dial plan for NPA 283]

NXX: 235

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
283-235 A Cincinnati OH   700J WAVENATION, LLC 922      
283-235 0 Cincinnati OH   490J DISH WIRELESS, LLC 922   2025-11-23   
283-235 1 Cincinnati OH   490J DISH WIRELESS, LLC 922   2025-11-23   
283-235 2 Cincinnati OH   490J DISH WIRELESS, LLC 922   2025-10-24   
283-235 3 Cincinnati OH   490J DISH WIRELESS, LLC 922   2025-10-24   
283-235 4 Cincinnati OH   490J DISH WIRELESS, LLC 922   2025-07-25   
283-235 5 Cincinnati OH   490J DISH WIRELESS, LLC 922   2025-07-25   
283-235 6 Cincinnati OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2025-09-22   
283-235 7 Cincinnati OH   732J NUSO, LLC 922   2025-07-28   
283-235 8 Cincinnati OH   732J NUSO, LLC 922   2025-07-28   
283-235 9 Cincinnati OH   700J WAVENATION, LLC 922   2025-09-22   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.