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: 210

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
283-210 A Mason OH CNCNOHBVBMD  732J NUSO, LLC 922      
283-210 0 Mason OH   464C ONVOY, LLC - OH 922   2024-02-29   
283-210 1 Mason OH CNCNOHBVBMD  732J NUSO, LLC 922   2023-10-13   
283-210 7 Mason OH   6529 T-MOBILE USA, INC. 922   2024-03-21   
283-210 8 Mason OH   6529 T-MOBILE USA, INC. 922   2024-03-21   
283-210 9 Mason OH   6529 T-MOBILE USA, INC. 922   2024-03-21   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.