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: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
209-375 A Yosemite CA WANACA11RS0  9740 PACIFIC BELL 738      
209-375 0 Yosemite CA SKTNCACZDS2  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738   2015-11-01   
209-375 1 Yosemite CA WANACA11RS0  9740 PACIFIC BELL 738      
209-375 2 Yosemite CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2016-02-26   
209-375 3 Yosemite CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2016-02-26   
209-375 4 Yosemite CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2019-03-08   
209-375 5 Yosemite CA SKTNCA01X6Z  516C AT&T CORP. 738   2011-08-09   
209-375 6 Yosemite CA WANACA11RS0  9740 PACIFIC BELL 738      
209-375 7 Yosemite CA SKTNCA01X7Z  508J CENTURYLINK COMMUNICATIONS, LLC 738   2014-05-12   
209-375 8 Yosemite CA SKTNCA01X6Y  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 738   2014-05-04   
209-375 9 Yosemite CA WANACA11RS0  9740 PACIFIC BELL 738      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.