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: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-663 A Lodi CA SKTOCAOY6MD  6529 T-MOBILE USA, INC. 738      
209-663 0 Lodi CA   6529 T-MOBILE USA, INC. 738   2003-12-08   
209-663 1 Lodi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2006-01-26   
209-663 2 Lodi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2006-01-26   
209-663 3 Lodi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2006-01-26   
209-663 4 Lodi CA   649C ONVOY, LLC - CA 738   2025-05-10   
209-663 5 Lodi CA   6529 T-MOBILE USA, INC. 738   2005-05-01   
209-663 6 Lodi CA   6529 T-MOBILE USA, INC. 738   2006-08-12   
209-663 7 Lodi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2003-10-04   
209-663 8 Lodi CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2003-03-02   
209-663 9 Lodi CA   6529 T-MOBILE USA, INC. 738      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.