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: WNDSCA11DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
707-836 A Windsor CA 9740 PACIFIC BELL 722      
707-836 0 Windsor CA 9740 PACIFIC BELL 722      
707-836 1 Windsor CA 9740 PACIFIC BELL 722      
707-836 2 Windsor CA 9740 PACIFIC BELL 722      
707-836 7 Windsor CA 9740 PACIFIC BELL 722      
707-836 8 Windsor CA 9740 PACIFIC BELL 722      
707-836 9 Windsor CA 9740 PACIFIC BELL 722      
707-837 A Windsor CA 9740 PACIFIC BELL 722      
707-837 0 Windsor CA 9740 PACIFIC BELL 722      
707-837 1 Windsor CA 9740 PACIFIC BELL 722      
707-837 2 Windsor CA 9740 PACIFIC BELL 722      
707-837 7 Windsor CA 9740 PACIFIC BELL 722      
707-837 8 Windsor CA 9740 PACIFIC BELL 722      
707-837 9 Windsor CA 9740 PACIFIC BELL 722      
707-838 A Windsor CA 9740 PACIFIC BELL 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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