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: SNTCCA01DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-235 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-276 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-326 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-327 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-330 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-450 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-486 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-492 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-495 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-496 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-562 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-563 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-565 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-566 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-567 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-588 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-653 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-654 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-727 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-748 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-764 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-844 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-845 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-855 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-919 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-969 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-970 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-980 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-982 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-986 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-987 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-988 A San Jose: West DA CA 9740 PACIFIC BELL 722      

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

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