Prefix Information

The prefix 123 is part of area code 636 serving OFallon, Missouri.

This exchange contains 10,000 possible phone numbers (636-123-0000 through 636-123-9999).

Browse Numbers in This Prefix

636-123-0000-0999 636-123-1000-1999 636-123-2000-2999 636-123-3000-3999 636-123-4000-4999 636-123-5000-5999 636-123-6000-6999 636-123-7000-7999 636-123-8000-8999 636-123-9000-9999

Sample Numbers

(636) 123-0000 (636) 123-1234 (636) 123-2000 (636) 123-3333 (636) 123-4444 (636) 123-5555 (636) 123-6000 (636) 123-7777 (636) 123-8888 (636) 123-9999