Prefix Information

The prefix 603 is part of area code 408 serving San Jose, California.

This exchange contains 10,000 possible phone numbers (408-603-0000 through 408-603-9999).

Browse Numbers in This Prefix

408-603-0000-0999 408-603-1000-1999 408-603-2000-2999 408-603-3000-3999 408-603-4000-4999 408-603-5000-5999 408-603-6000-6999 408-603-7000-7999 408-603-8000-8999 408-603-9000-9999

Sample Numbers

(408) 603-0000 (408) 603-1234 (408) 603-2000 (408) 603-3333 (408) 603-4444 (408) 603-5555 (408) 603-6000 (408) 603-7777 (408) 603-8888 (408) 603-9999