Prefix Information

The prefix 340 is part of area code 415 serving San Francisco, California.

This exchange contains 10,000 possible phone numbers (415-340-0000 through 415-340-9999).

Browse Numbers in This Prefix

415-340-0000-0999 415-340-1000-1999 415-340-2000-2999 415-340-3000-3999 415-340-4000-4999 415-340-5000-5999 415-340-6000-6999 415-340-7000-7999 415-340-8000-8999 415-340-9000-9999

Sample Numbers

(415) 340-0000 (415) 340-1234 (415) 340-2000 (415) 340-3333 (415) 340-4444 (415) 340-5555 (415) 340-6000 (415) 340-7777 (415) 340-8888 (415) 340-9999