Prefix Information

The prefix 931 is part of area code 510 serving Oakland, California.

This exchange contains 10,000 possible phone numbers (510-931-0000 through 510-931-9999).

Browse Numbers in This Prefix

510-931-0000-0999 510-931-1000-1999 510-931-2000-2999 510-931-3000-3999 510-931-4000-4999 510-931-5000-5999 510-931-6000-6999 510-931-7000-7999 510-931-8000-8999 510-931-9000-9999

Sample Numbers

(510) 931-0000 (510) 931-1234 (510) 931-2000 (510) 931-3333 (510) 931-4444 (510) 931-5555 (510) 931-6000 (510) 931-7777 (510) 931-8888 (510) 931-9999