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.

Switch: SKTNCACZDS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
209-254 A Ripon CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
209-268 A Jackson CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
209-297 A Angels Camp CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
209-310 A Lodi CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
209-316 A Planada CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
209-493 A Oakdale CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
209-512 A Yosemite CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
209-689 A Stockton CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      
350-209 A Valley Springs CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 738      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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