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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
283-203 A Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922      
283-203 0 Cincinnati OH CNCNOHWSXGY  5562 METROPCS, INC. 922   2023-08-19   
283-203 1 Cincinnati OH CNCNOHWSXGY  5562 METROPCS, INC. 922   2023-08-19   
283-203 2 Cincinnati OH CNCNOHWSXGY  5562 METROPCS, INC. 922   2023-08-19   
283-203 3 Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2024-02-28   
283-203 4 Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2024-02-28   
283-203 5 Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2023-12-22   
283-203 6 Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2023-12-22   
283-203 7 Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2024-02-06   
283-203 8 Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2023-08-05   
283-203 9 Cincinnati OH CNCNOHAMGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 922   2023-08-05   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.