Prefix Information

The prefix 666 is part of area code 510 serving Oakland, California.

This exchange contains 10,000 possible phone numbers (510-666-0000 through 510-666-9999).

Browse Numbers in This Prefix

510-666-0000-0999 510-666-1000-1999 510-666-2000-2999 510-666-3000-3999 510-666-4000-4999 510-666-5000-5999 510-666-6000-6999 510-666-7000-7999 510-666-8000-8999 510-666-9000-9999

Sample Numbers

(510) 666-0000 (510) 666-1234 (510) 666-2000 (510) 666-3333 (510) 666-4444 (510) 666-5555 (510) 666-6000 (510) 666-7777 (510) 666-8888 (510) 666-9999