Prefix Information

The prefix 231 is part of area code 872 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (872-231-0000 through 872-231-9999).

Browse Numbers in This Prefix

872-231-0000-0999 872-231-1000-1999 872-231-2000-2999 872-231-3000-3999 872-231-4000-4999 872-231-5000-5999 872-231-6000-6999 872-231-7000-7999 872-231-8000-8999 872-231-9000-9999

Sample Numbers

(872) 231-0000 (872) 231-1234 (872) 231-2000 (872) 231-3333 (872) 231-4444 (872) 231-5555 (872) 231-6000 (872) 231-7777 (872) 231-8888 (872) 231-9999