Prefix Information

The prefix 123 is part of area code 650 serving San Mateo, California.

This exchange contains 10,000 possible phone numbers (650-123-0000 through 650-123-9999).

Browse Numbers in This Prefix

650-123-0000-0999 650-123-1000-1999 650-123-2000-2999 650-123-3000-3999 650-123-4000-4999 650-123-5000-5999 650-123-6000-6999 650-123-7000-7999 650-123-8000-8999 650-123-9000-9999

Sample Numbers

(650) 123-0000 (650) 123-1234 (650) 123-2000 (650) 123-3333 (650) 123-4444 (650) 123-5555 (650) 123-6000 (650) 123-7777 (650) 123-8888 (650) 123-9999