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: 447

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-447 A Modesto CA SKTNCASLAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738      
209-447 0 Modesto CA   073H TELNYX LLC 738   2017-05-02   
209-447 1 Modesto CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2016-03-04   
209-447 2 Modesto CA   6529 T-MOBILE USA, INC. 738   2017-03-25   
209-447 3 Modesto CA   6529 T-MOBILE USA, INC. 738   2015-05-01   
209-447 4 Modesto CA   6529 T-MOBILE USA, INC. 738   2015-05-01   
209-447 5 Modesto CA   6529 T-MOBILE USA, INC. 738   2015-05-01   
209-447 6 Modesto CA   6529 T-MOBILE USA, INC. 738   2015-05-01   
209-447 7 Modesto CA   6529 T-MOBILE USA, INC. 738   2015-05-01   
209-447 8 Modesto CA   6529 T-MOBILE USA, INC. 738   2015-05-01   
209-447 9 Modesto CA   6529 T-MOBILE USA, INC. 738   2015-05-01   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.