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: THCYCA01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-581 A North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 0 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 1 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 2 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 3 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 4 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 5 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 6 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 7 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-581 8 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-583 A North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-584 A North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-584 1 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-584 5 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      
530-584 6 North Tahoe: Tahoe City DA CA 9740 PACIFIC BELL 726      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.