Prefix Information

The prefix 831 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-831-0000 through 712-831-9999).

Browse Numbers in This Prefix

712-831-0000-0999 712-831-1000-1999 712-831-2000-2999 712-831-3000-3999 712-831-4000-4999 712-831-5000-5999 712-831-6000-6999 712-831-7000-7999 712-831-8000-8999 712-831-9000-9999

Sample Numbers

(712) 831-0000 (712) 831-1234 (712) 831-2000 (712) 831-3333 (712) 831-4444 (712) 831-5555 (712) 831-6000 (712) 831-7777 (712) 831-8888 (712) 831-9999