Area Code 231

Area code 231 serves the state of Michigan. This area code was assigned on March 11th, 1999. On June 5th, 1999 it went into service. 231 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D.

Area Code & Prefix Location
231-201 Wyoming, Mi
231-202 Wyoming, Mi
231-203 Wyoming, Mi
231-206 Kentwood, Mi
231-214 Grand Rapids, Mi
231-215 Grand Rapids, Mi
231-220 Grand Rapids, Mi
231-224 Grand Rapids, Mi
231-225 Grand Rapids, Mi
231-228 Cedar, Mi
231-229 Moorestown, Mi
231-230 Grand Rapids, Mi
231-232 Grand Rapids, Mi
231-233 Grand Rapids, Mi
231-236 Grand Rapids, Mi
231-239 Grand Rapids, Mi
231-241 Muskegon, Mi
231-242 Harbor Springs, Mi
231-245 Wyoming, Mi
231-262 Grand Rapids, Mi
231-269 Buckley, Mi
231-282 Wyoming, Mi
231-286 Grand Rapids, Mi
231-288 Wyoming, Mi
231-290 Wyoming, Mi
231-291 Grand Rapids, Mi
231-302 Grand Rapids, Mi
231-303 Grand Rapids, Mi
231-307 Wyoming, Mi
231-312 Grand Rapids, Mi
231-313 Wyoming, Mi
231-315 Grand Rapids, Mi
231-316 Grand Rapids, Mi
231-322 Rapid City, Mi
231-327 Wyoming, Mi
231-329 Wyoming, Mi
231-330 Traverse City, Mi
231-331 Alden, Mi
231-332 Grand Rapids, Mi
231-335 Wyoming, Mi
231-336 Grand Rapids, Mi
231-339 Grand Rapids, Mi
231-340 Traverse City, Mi
231-343 Kentwood, Mi
231-344 Grand Rapids, Mi
231-347 Petoskey, Mi
231-348 Petoskey, Mi
231-352 Frankfort, Mi
231-355 Grand Rapids, Mi
231-360 Wyoming, Mi
231-373 Traverse City, Mi
231-375 Three Rivers, Mi
231-388 Grand Rapids, Mi
231-394 Traverse City, Mi
231-395 Grand Rapids, Mi
231-399 Grand Rapids, Mi
231-404 Wyoming, Mi
231-408 Wyoming, Mi
231-409 Wyoming, Mi
231-414 Wyoming, Mi
231-425 Kentwood, Mi
231-432 Wyoming, Mi
231-433 Traverse City, Mi
231-434 Wyoming, Mi
231-439 Petoskey, Mi
231-450 Wyoming, Mi
231-452 Grand Rapids, Mi
231-457 Grand Rapids, Mi
231-465 Wyoming, Mi
231-480 Grand Rapids, Mi
231-487 Petoskey, Mi
231-489 Traverse City, Mi
231-495 Wyoming, Mi
231-510 Wyoming, Mi
231-516 Grand Rapids, Mi
231-519 Grand Rapids, Mi
231-526 Harbor Springs, Mi
231-538 Grand Rapids, Mi
231-543 Grand Rapids, Mi
231-546 Elmira, Mi
231-557 Grand Rapids, Mi
231-563 Grand Rapids, Mi
231-564 Wyoming, Mi
231-569 Grand Rapids, Mi
231-570 Wyoming, Mi
231-571 Muskegon, Mi
231-578 Kentwood, Mi
231-583 Grand Rapids, Mi
231-588 Ellsworth, Mi
231-598 Wyoming, Mi
231-605 Grand Rapids, Mi
231-608 Grand Rapids, Mi
231-613 Wyoming, Mi
231-620 Wyoming, Mi
231-622 Grand Rapids, Mi
231-632 Wyoming, Mi
231-633 Wyoming, Mi
231-638 Kentwood, Mi
231-640 Wyoming, Mi
231-645 Wyoming, Mi
231-646 Ellsworth, Mi
231-651 Wyoming, Mi
231-652 Newaygo, Mi
231-662 Grand Rapids, Mi
231-667 Wyoming, Mi
231-670 Grand Rapids, Mi
231-672 Grand Rapids, Mi
231-674 Grand Rapids, Mi
231-675 Wyoming, Mi
231-676 Wyoming, Mi
231-682 Grand Rapids, Mi
231-683 Grand Rapids, Mi
231-686 Grand Rapids, Mi
231-689 White Cloud, Mi
231-690 Grand Rapids, Mi
231-709 Wyoming, Mi
231-712 Grand Rapids, Mi
231-715 Wyoming, Mi
231-719 Muskegon, Mi
231-720 Muskegon, Mi
231-722 Muskegon, Mi
231-724 Muskegon, Mi
231-725 Muskegon, Mi
231-726 Muskegon, Mi
231-727 Muskegon, Mi
231-728 Muskegon, Mi
231-729 Wyoming, Mi
231-730 Wyoming, Mi
231-731 Grand Rapids, Mi
231-733 Muskegon Heights, Mi
231-736 Muskegon, Mi
231-737 Muskegon Heights, Mi
231-739 Muskegon Heights, Mi
231-740 Grand Rapids, Mi
231-741 Grand Rapids, Mi
231-742 Wyoming, Mi
231-743 Marion, Mi
231-744 Muskegon, Mi
231-747 Muskegon, Mi
231-750 Wyoming, Mi
231-753 Grand Rapids, Mi
231-755 Muskegon, Mi
231-758 Kentwood, Mi
231-759 Muskegon, Mi
231-760 Muskegon, Mi
231-766 Muskegon, Mi
231-767 Muskegon, Mi
231-768 Le Roy, Mi
231-769 Muskegon, Mi
231-773 Muskegon, Mi
231-776 Grand Rapids, Mi
231-777 Muskegon, Mi
231-780 Norton Shores, Mi
231-787 Grand Rapids, Mi
231-788 Wolf Lake (muskegon), Mi
231-789 Grand Rapids, Mi
231-793 Grand Rapids, Mi
231-794 Wyoming, Mi
231-798 Muskegon, Mi
231-799 Muskegon, Mi
231-813 Grand Rapids, Mi
231-818 Wyoming, Mi
231-819 Grand Rapids, Mi
231-821 Holton, Mi
231-823 Stanwood, Mi
231-826 Falmouth, Mi
231-828 Twin Lake, Mi
231-829 Tustin, Mi
231-830 Muskegon Heights, Mi
231-833 Wyoming, Mi
231-834 Grant, Mi
231-835 Wyoming, Mi
231-837 Grand Rapids, Mi
231-838 Wyoming, Mi
231-839 Lake City, Mi
231-843 Ludington, Mi
231-845 Ludington, Mi
231-848 Wellston, Mi
231-852 Wyoming, Mi
231-853 Ravenna, Mi
231-854 Hesperia, Mi
231-855 Wyoming, Mi
231-859 Wellston, Mi
231-861 Shelby, Mi
231-866 Wyoming, Mi
231-871 Wyoming, Mi
231-872 Wyoming, Mi
231-881 Wyoming, Mi
231-883 Wyoming, Mi
231-884 Wyoming, Mi
231-886 Wyoming, Mi
231-887 Wyoming, Mi
231-888 Grand Rapids, Mi
231-893 Whitehall, Mi
231-894 Whitehall, Mi
231-903 Grand Rapids, Mi
231-907 Wyoming, Mi
231-912 Wyoming, Mi
231-920 Wyoming, Mi
231-924 Fremont, Mi
231-928 Fremont, Mi
231-939 Wyoming, Mi
231-944 Petoskey, Mi
231-955 Wyoming, Mi
231-970 Wyoming, Mi
231-974 Grand Rapids, Mi
231-981 Whitehall, Mi