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: CHICCA017MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-232 A Redding CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-236 A Challenge CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-239 A Mount Shasta CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-248 A Redding CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-250 A Susanville CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-353 A Oroville CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-403 A Oroville CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-410 A Redding CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-423 A Weaverville CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-425 A Stonyford CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-449 A Oak Run CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-471 A Weed CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2024-01-03   
530-484 A Elk Creek CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-678 A Dunsmuir CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-684 A Montague CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2024-01-03   
530-685 A Willows CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-688 A Shasta Lake CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-706 A Hayfork CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-729 A Hornbrook CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-730 A Bangor CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-731 A Grenada CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2024-01-03   
530-732 A Gerber CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-734 A French Gulch CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-779 A Millville CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-806 A Redding CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-849 A Shingletown CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-853 A McCloud CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-884 A Butte City CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2024-01-03   
530-936 A Orland CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-937 A Yreka CA 8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.