Prefix Information

The prefix 343 is part of area code 636 serving OFallon, Missouri.

This exchange contains 10,000 possible phone numbers (636-343-0000 through 636-343-9999).

Browse Numbers in This Prefix

636-343-0000-0999 636-343-1000-1999 636-343-2000-2999 636-343-3000-3999 636-343-4000-4999 636-343-5000-5999 636-343-6000-6999 636-343-7000-7999 636-343-8000-8999 636-343-9000-9999

Sample Numbers

(636) 343-0000 (636) 343-1234 (636) 343-2000 (636) 343-3333 (636) 343-4444 (636) 343-5555 (636) 343-6000 (636) 343-7777 (636) 343-8888 (636) 343-9999