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: 750

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-750 A Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 0 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 1 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 2 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 3 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 4 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 5 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 6 Davis CA WSCRCAAHNMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 726   2023-03-23   
530-750 7 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 8 Davis CA DAVSCA11DS0  9740 PACIFIC BELL 726      
530-750 9 Davis CA SCRMCA01GT1  6010 NEW CINGULAR WIRELESS PCS, LLC 726   2011-07-18   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.