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.

Switch: CHICCA01XGX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-255 3 Redding CA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 724   2021-05-04   
530-922 A Oroville CA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 724      
530-922 9 Oroville CA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 724   2018-09-06   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.