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: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-855 A Tracy CA SKTOCAOY6MD  5562 METROPCS, INC. 738      
209-855 0 Tracy CA   5562 METROPCS, INC. 738   2008-08-24   
209-855 1 Tracy CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2008-09-19   
209-855 2 Tracy CA   649C ONVOY, LLC - CA 738   2008-10-12   
209-855 3 Tracy CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2025-01-13   
209-855 4 Tracy CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2025-01-13   
209-855 5 Tracy CA   649C ONVOY, LLC - CA 738   2008-10-12   
209-855 6 Tracy CA   5562 METROPCS, INC. 738   2009-07-02   
209-855 7 Tracy CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 738   2009-08-17   
209-855 8 Tracy CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 738   2009-08-28   
209-855 9 Tracy CA   649C ONVOY, LLC - CA 738   2008-08-25   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.