Prefix Information

The prefix 203 is part of area code 415 serving San Francisco, California.

This exchange contains 10,000 possible phone numbers (415-203-0000 through 415-203-9999).

Browse Numbers in This Prefix

415-203-0000-0999 415-203-1000-1999 415-203-2000-2999 415-203-3000-3999 415-203-4000-4999 415-203-5000-5999 415-203-6000-6999 415-203-7000-7999 415-203-8000-8999 415-203-9000-9999

Sample Numbers

(415) 203-0000 (415) 203-1234 (415) 203-2000 (415) 203-3333 (415) 203-4444 (415) 203-5555 (415) 203-6000 (415) 203-7777 (415) 203-8888 (415) 203-9999