Prefix Information

The prefix 644 is part of area code 313 serving Detroit, Michigan.

This exchange contains 10,000 possible phone numbers (313-644-0000 through 313-644-9999).

Browse Numbers in This Prefix

313-644-0000-0999 313-644-1000-1999 313-644-2000-2999 313-644-3000-3999 313-644-4000-4999 313-644-5000-5999 313-644-6000-6999 313-644-7000-7999 313-644-8000-8999 313-644-9000-9999

Sample Numbers

(313) 644-0000 (313) 644-1234 (313) 644-2000 (313) 644-3333 (313) 644-4444 (313) 644-5555 (313) 644-6000 (313) 644-7777 (313) 644-8888 (313) 644-9999