Prefix Information

The prefix 631 is part of area code 313 serving Detroit, Michigan.

This exchange contains 10,000 possible phone numbers (313-631-0000 through 313-631-9999).

Browse Numbers in This Prefix

313-631-0000-0999 313-631-1000-1999 313-631-2000-2999 313-631-3000-3999 313-631-4000-4999 313-631-5000-5999 313-631-6000-6999 313-631-7000-7999 313-631-8000-8999 313-631-9000-9999

Sample Numbers

(313) 631-0000 (313) 631-1234 (313) 631-2000 (313) 631-3333 (313) 631-4444 (313) 631-5555 (313) 631-6000 (313) 631-7777 (313) 631-8888 (313) 631-9999