Prefix Information

The prefix 840 is part of area code 408 serving San Jose, California.

This exchange contains 10,000 possible phone numbers (408-840-0000 through 408-840-9999).

Browse Numbers in This Prefix

408-840-0000-0999 408-840-1000-1999 408-840-2000-2999 408-840-3000-3999 408-840-4000-4999 408-840-5000-5999 408-840-6000-6999 408-840-7000-7999 408-840-8000-8999 408-840-9000-9999

Sample Numbers

(408) 840-0000 (408) 840-1234 (408) 840-2000 (408) 840-3333 (408) 840-4444 (408) 840-5555 (408) 840-6000 (408) 840-7777 (408) 840-8888 (408) 840-9999