Prefix Information

The prefix 231 is part of area code 313 serving Detroit, Michigan.

This exchange contains 10,000 possible phone numbers (313-231-0000 through 313-231-9999).

Browse Numbers in This Prefix

313-231-0000-0999 313-231-1000-1999 313-231-2000-2999 313-231-3000-3999 313-231-4000-4999 313-231-5000-5999 313-231-6000-6999 313-231-7000-7999 313-231-8000-8999 313-231-9000-9999

Sample Numbers

(313) 231-0000 (313) 231-1234 (313) 231-2000 (313) 231-3333 (313) 231-4444 (313) 231-5555 (313) 231-6000 (313) 231-7777 (313) 231-8888 (313) 231-9999