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: MTSHCA12DS1

Remotes:

Switch Switch name Switch type
DNSMCA11RS0  DUNSMUIR  5BR 
WEEDCA01RS0  WEED  5BR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-918 A Mount Shasta CA 9740 PACIFIC BELL 724      
530-918 0 Mount Shasta CA 9740 PACIFIC BELL 724      
530-918 1 Mount Shasta CA 9740 PACIFIC BELL 724      
530-918 7 Mount Shasta CA 9740 PACIFIC BELL 724      
530-918 9 Mount Shasta CA 9740 PACIFIC BELL 724      
530-926 A Mount Shasta CA 9740 PACIFIC BELL 724      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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