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: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-255 A Redding CA CHIDCAEW5MD  732J NUSO, LLC 724      
530-255 0 Redding CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 724   2022-09-08   
530-255 1 Redding CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-255 2 Redding CA   649C ONVOY, LLC - CA 724      
530-255 3 Redding CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 724   2021-05-04   
530-255 4 Redding CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2010-04-02   
530-255 5 Redding CA   490J DISH WIRELESS, LLC 724   2023-07-02   
530-255 6 Redding CA   649C ONVOY, LLC - CA 724      
530-255 7 Redding CA   649C ONVOY, LLC - CA 724   2024-07-27   
530-255 8 Redding CA   776C CHARTER FIBERLINK CA-CCO, LLC - CA 724   2010-05-30   
530-255 9 Redding CA   732J NUSO, LLC 724   2023-07-08   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.