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: 963

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-963 A Stonyford CA STFRCA11RS1  9740 PACIFIC BELL 724      
530-963 1 Stonyford CA STFRCA11RS1  9740 PACIFIC BELL 724      
530-963 2 Stonyford CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2023-07-23   
530-963 3 Stonyford CA STFRCA11RS1  9740 PACIFIC BELL 724      
530-963 4 Stonyford CA CHICCA78AMD  516C AT&T CORP. 724   2025-01-15   
530-963 8 Stonyford CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2022-06-19   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.