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: 276

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-276 A Atwater CA SKTOCAOY6MD  6529 T-MOBILE USA, INC. 738      
209-276 0 Atwater CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 738   2013-07-21   
209-276 1 Atwater CA   6529 T-MOBILE USA, INC. 738   2013-10-02   
209-276 2 Atwater CA   508J CENTURYLINK COMMUNICATIONS, LLC 738   2014-05-13   
209-276 3 Atwater CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2014-06-26   
209-276 4 Atwater CA   6529 T-MOBILE USA, INC. 738   2014-09-27   
209-276 5 Atwater CA   6529 T-MOBILE USA, INC. 738   2014-07-06   
209-276 6 Atwater CA   6529 T-MOBILE USA, INC. 738   2014-04-13   
209-276 7 Atwater CA   6529 T-MOBILE USA, INC. 738   2014-02-17   
209-276 8 Atwater CA   6529 T-MOBILE USA, INC. 738   2013-08-11   
209-276 9 Atwater CA   6529 T-MOBILE USA, INC. 738   2013-07-04   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.