Prefix Information

The prefix 491 is part of area code 650 serving San Mateo, California.

This exchange contains 10,000 possible phone numbers (650-491-0000 through 650-491-9999).

Browse Numbers in This Prefix

650-491-0000-0999 650-491-1000-1999 650-491-2000-2999 650-491-3000-3999 650-491-4000-4999 650-491-5000-5999 650-491-6000-6999 650-491-7000-7999 650-491-8000-8999 650-491-9000-9999

Sample Numbers

(650) 491-0000 (650) 491-1234 (650) 491-2000 (650) 491-3333 (650) 491-4444 (650) 491-5555 (650) 491-6000 (650) 491-7777 (650) 491-8888 (650) 491-9999