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.

OCN: 734E CAL-ORE COMMUNICATIONS, INC. - CA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
530-319 A Redding CA DRRSCAABDS0  724      
530-319 8 Redding CA   724   2016-12-11   
530-568 8 Mount Shasta CA   724   2018-01-31   
530-657 A Weed CA YREKCA080MD  724      
530-657 8 Weed CA   724   2009-07-05   
530-841 7 Yreka CA   724   2011-08-07   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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