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: SNJSCA02DS0

Remotes:

Switch Switch name Switch type
SNMACA11RS0  SAN MARTIN  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-271 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-275 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-278 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-280 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-289 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-291 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-292 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-293 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-294 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-295 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-297 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-298 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-299 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-491 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-494 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-534 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-535 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-536 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-537 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-704 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-792 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-793 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-794 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-795 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-808 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-817 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-881 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-882 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-920 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-924 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-925 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-931 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-975 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-977 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-989 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-993 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-994 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-995 A San Jose: West DA CA 9740 PACIFIC BELL 722      
408-999 A San Jose: West DA CA 9740 PACIFIC BELL 722      

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

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