Are you wondering what numbers are local for you?
Ameritech has a page that you can lookup all the numbers
that are local for you. That page is located here.

City	Phone Number
Algonac, MI	810 821 8000
Ann Arbor, MI	734 661 8000
Birmingham, MI	248 282 8000
Clarkston, MI	248 927 8000
Detroit, MI	313 557 8000
Farmington, MI	248 479 8000
Fenton, MI	810 885 8000
Flat Rock, MI	734 758 8000
Flint, MI	810 963 8000
Lapeer, MI	810 277 8000
Lexington, MI	810 815 8000
Livonia, MI	734 518 8000
Monroe, MI	734 264 8000
Mt. Clemens, MI	586 461 8000
Northville, MI	248 692 8000
Plymouth, MI	734 468 8000
Pontiac, MI	248 920 8000
Port Huron, MI	810 958 8000
Rochester, MI	248 453 8000
Romulus, MI	734 939 8000
Roseville, MI	586 279 8000
Royal Oak, MI	248 284 8000
Sandusky, MI	810 592 8000
Southfield, MI	248 281 8000
St. Clair, MI	810 454 8000
Troy, MI	248 928 8000
Utica, MI	586 314 8000
West Bloomfield, MI	248 671 8000
Washington, MI	586 816 8000
Warren, MI	586 283 8000
Wayne, MI	734 423 8000
Ypsilanti, MI	734 448 8000