Prefix Information

The prefix 638 is part of area code 408 serving San Jose, California.

This exchange contains 10,000 possible phone numbers (408-638-0000 through 408-638-9999).

Browse Numbers in This Prefix

408-638-0000-0999 408-638-1000-1999 408-638-2000-2999 408-638-3000-3999 408-638-4000-4999 408-638-5000-5999 408-638-6000-6999 408-638-7000-7999 408-638-8000-8999 408-638-9000-9999

Sample Numbers

(408) 638-0000 (408) 638-1234 (408) 638-2000 (408) 638-3333 (408) 638-4444 (408) 638-5555 (408) 638-6000 (408) 638-7777 (408) 638-8888 (408) 638-9999