Prefix Information

The prefix 623 is part of area code 636 serving OFallon, Missouri.

This exchange contains 10,000 possible phone numbers (636-623-0000 through 636-623-9999).

Browse Numbers in This Prefix

636-623-0000-0999 636-623-1000-1999 636-623-2000-2999 636-623-3000-3999 636-623-4000-4999 636-623-5000-5999 636-623-6000-6999 636-623-7000-7999 636-623-8000-8999 636-623-9000-9999

Sample Numbers

(636) 623-0000 (636) 623-1234 (636) 623-2000 (636) 623-3333 (636) 623-4444 (636) 623-5555 (636) 623-6000 (636) 623-7777 (636) 623-8888 (636) 623-9999