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.
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Switch: SONMCA12DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
707-933 A Sonoma CA 9740 PACIFIC BELL 722      
707-933 0 Sonoma CA 9740 PACIFIC BELL 722      
707-933 1 Sonoma CA 9740 PACIFIC BELL 722      
707-933 2 Sonoma CA 9740 PACIFIC BELL 722      
707-933 3 Sonoma CA 9740 PACIFIC BELL 722      
707-933 4 Sonoma CA 9740 PACIFIC BELL 722      
707-933 8 Sonoma CA 9740 PACIFIC BELL 722      
707-933 9 Sonoma CA 9740 PACIFIC BELL 722      
707-935 A Sonoma CA 9740 PACIFIC BELL 722      
707-938 A Sonoma CA 9740 PACIFIC BELL 722      
707-938 0 Sonoma CA 9740 PACIFIC BELL 722      
707-938 1 Sonoma CA 9740 PACIFIC BELL 722      
707-938 2 Sonoma CA 9740 PACIFIC BELL 722      
707-938 3 Sonoma CA 9740 PACIFIC BELL 722      
707-938 4 Sonoma CA 9740 PACIFIC BELL 722      
707-938 5 Sonoma CA 9740 PACIFIC BELL 722      
707-938 6 Sonoma CA 9740 PACIFIC BELL 722      
707-938 8 Sonoma CA 9740 PACIFIC BELL 722      
707-938 9 Sonoma CA 9740 PACIFIC BELL 722      
707-939 A Sonoma CA 9740 PACIFIC BELL 722      
707-939 0 Sonoma CA 9740 PACIFIC BELL 722      
707-939 1 Sonoma CA 9740 PACIFIC BELL 722      
707-939 2 Sonoma CA 9740 PACIFIC BELL 722      
707-939 3 Sonoma CA 9740 PACIFIC BELL 722      
707-939 4 Sonoma CA 9740 PACIFIC BELL 722      
707-939 6 Sonoma CA 9740 PACIFIC BELL 722      
707-939 7 Sonoma CA 9740 PACIFIC BELL 722      
707-939 8 Sonoma CA 9740 PACIFIC BELL 722      
707-939 9 Sonoma CA 9740 PACIFIC BELL 722      
707-996 A Sonoma CA 9740 PACIFIC BELL 722      

Last updated: Sun, 01 Nov 2026 02:11:49 UTC

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