Prefix Information

The prefix 231 is part of area code 309 serving Peoria, Illinois.

This exchange contains 10,000 possible phone numbers (309-231-0000 through 309-231-9999).

Browse Numbers in This Prefix

309-231-0000-0999 309-231-1000-1999 309-231-2000-2999 309-231-3000-3999 309-231-4000-4999 309-231-5000-5999 309-231-6000-6999 309-231-7000-7999 309-231-8000-8999 309-231-9000-9999

Sample Numbers

(309) 231-0000 (309) 231-1234 (309) 231-2000 (309) 231-3333 (309) 231-4444 (309) 231-5555 (309) 231-6000 (309) 231-7777 (309) 231-8888 (309) 231-9999