Prefix Information

The prefix 831 is part of area code 314 serving St. Louis, Missouri.

This exchange contains 10,000 possible phone numbers (314-831-0000 through 314-831-9999).

Browse Numbers in This Prefix

314-831-0000-0999 314-831-1000-1999 314-831-2000-2999 314-831-3000-3999 314-831-4000-4999 314-831-5000-5999 314-831-6000-6999 314-831-7000-7999 314-831-8000-8999 314-831-9000-9999

Sample Numbers

(314) 831-0000 (314) 831-1234 (314) 831-2000 (314) 831-3333 (314) 831-4444 (314) 831-5555 (314) 831-6000 (314) 831-7777 (314) 831-8888 (314) 831-9999