Prefix Information

The prefix 404 is part of area code 510 serving Oakland, California.

This exchange contains 10,000 possible phone numbers (510-404-0000 through 510-404-9999).

Browse Numbers in This Prefix

510-404-0000-0999 510-404-1000-1999 510-404-2000-2999 510-404-3000-3999 510-404-4000-4999 510-404-5000-5999 510-404-6000-6999 510-404-7000-7999 510-404-8000-8999 510-404-9000-9999

Sample Numbers

(510) 404-0000 (510) 404-1234 (510) 404-2000 (510) 404-3333 (510) 404-4444 (510) 404-5555 (510) 404-6000 (510) 404-7777 (510) 404-8888 (510) 404-9999