Prefix Information

The prefix 638 is part of area code 415 serving San Francisco, California.

This exchange contains 10,000 possible phone numbers (415-638-0000 through 415-638-9999).

Browse Numbers in This Prefix

415-638-0000-0999 415-638-1000-1999 415-638-2000-2999 415-638-3000-3999 415-638-4000-4999 415-638-5000-5999 415-638-6000-6999 415-638-7000-7999 415-638-8000-8999 415-638-9000-9999

Sample Numbers

(415) 638-0000 (415) 638-1234 (415) 638-2000 (415) 638-3333 (415) 638-4444 (415) 638-5555 (415) 638-6000 (415) 638-7777 (415) 638-8888 (415) 638-9999