Prefix Information

The prefix 821 is part of area code 415 serving San Francisco, California.

This exchange contains 10,000 possible phone numbers (415-821-0000 through 415-821-9999).

Browse Numbers in This Prefix

415-821-0000-0999 415-821-1000-1999 415-821-2000-2999 415-821-3000-3999 415-821-4000-4999 415-821-5000-5999 415-821-6000-6999 415-821-7000-7999 415-821-8000-8999 415-821-9000-9999

Sample Numbers

(415) 821-0000 (415) 821-1234 (415) 821-2000 (415) 821-3333 (415) 821-4444 (415) 821-5555 (415) 821-6000 (415) 821-7777 (415) 821-8888 (415) 821-9999