Prefix Information

The prefix 257 is part of area code 408 serving San Jose, California.

This exchange contains 10,000 possible phone numbers (408-257-0000 through 408-257-9999).

Browse Numbers in This Prefix

408-257-0000-0999 408-257-1000-1999 408-257-2000-2999 408-257-3000-3999 408-257-4000-4999 408-257-5000-5999 408-257-6000-6999 408-257-7000-7999 408-257-8000-8999 408-257-9000-9999

Sample Numbers

(408) 257-0000 (408) 257-1234 (408) 257-2000 (408) 257-3333 (408) 257-4444 (408) 257-5555 (408) 257-6000 (408) 257-7777 (408) 257-8888 (408) 257-9999