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: 209 [Rate centres in NPA 209] [Dial plan for NPA 209]

NXX: 633

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-633 A Turlock CA SKTNCA111MD  9262 UTILITY TELECOM GROUP, LLC - CA 738      
209-633 0 Turlock CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 738      
209-633 1 Turlock CA   9262 UTILITY TELECOM GROUP, LLC - CA 738      
209-633 2 Turlock CA   9262 UTILITY TELECOM GROUP, LLC - CA 738      
209-633 3 Turlock CA   776C CHARTER FIBERLINK CA-CCO, LLC - CA 738      
209-633 4 Turlock CA   649C ONVOY, LLC - CA 738      
209-633 5 Turlock CA   649C ONVOY, LLC - CA 738      
209-633 6 Turlock CA   649C ONVOY, LLC - CA 738      
209-633 7 Turlock CA   649C ONVOY, LLC - CA 738      
209-633 8 Turlock CA   9262 UTILITY TELECOM GROUP, LLC - CA 738   2006-05-24   
209-633 9 Turlock CA   649C ONVOY, LLC - CA 738   2006-01-14   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.