Prefix Information

The prefix 664 is part of area code 636 serving OFallon, Missouri.

This exchange contains 10,000 possible phone numbers (636-664-0000 through 636-664-9999).

Browse Numbers in This Prefix

636-664-0000-0999 636-664-1000-1999 636-664-2000-2999 636-664-3000-3999 636-664-4000-4999 636-664-5000-5999 636-664-6000-6999 636-664-7000-7999 636-664-8000-8999 636-664-9000-9999

Sample Numbers

(636) 664-0000 (636) 664-1234 (636) 664-2000 (636) 664-3333 (636) 664-4444 (636) 664-5555 (636) 664-6000 (636) 664-7777 (636) 664-8888 (636) 664-9999