Prefix Information

The prefix 644 is part of area code 810 serving Flint, Michigan.

This exchange contains 10,000 possible phone numbers (810-644-0000 through 810-644-9999).

Browse Numbers in This Prefix

810-644-0000-0999 810-644-1000-1999 810-644-2000-2999 810-644-3000-3999 810-644-4000-4999 810-644-5000-5999 810-644-6000-6999 810-644-7000-7999 810-644-8000-8999 810-644-9000-9999

Sample Numbers

(810) 644-0000 (810) 644-1234 (810) 644-2000 (810) 644-3333 (810) 644-4444 (810) 644-5555 (810) 644-6000 (810) 644-7777 (810) 644-8888 (810) 644-9999