Prefix Information

The prefix 231 is part of area code 219 serving Gary, Indiana.

This exchange contains 10,000 possible phone numbers (219-231-0000 through 219-231-9999).

Browse Numbers in This Prefix

219-231-0000-0999 219-231-1000-1999 219-231-2000-2999 219-231-3000-3999 219-231-4000-4999 219-231-5000-5999 219-231-6000-6999 219-231-7000-7999 219-231-8000-8999 219-231-9000-9999

Sample Numbers

(219) 231-0000 (219) 231-1234 (219) 231-2000 (219) 231-3333 (219) 231-4444 (219) 231-5555 (219) 231-6000 (219) 231-7777 (219) 231-8888 (219) 231-9999