Prefix Information

The prefix 604 is part of area code 650 serving San Mateo, California.

This exchange contains 10,000 possible phone numbers (650-604-0000 through 650-604-9999).

Browse Numbers in This Prefix

650-604-0000-0999 650-604-1000-1999 650-604-2000-2999 650-604-3000-3999 650-604-4000-4999 650-604-5000-5999 650-604-6000-6999 650-604-7000-7999 650-604-8000-8999 650-604-9000-9999

Sample Numbers

(650) 604-0000 (650) 604-1234 (650) 604-2000 (650) 604-3333 (650) 604-4444 (650) 604-5555 (650) 604-6000 (650) 604-7777 (650) 604-8888 (650) 604-9999