480 Port Huron Area 481 Ann Arbor Area 482 Detroit Area 483 Pontiac Area 484 Flint & Thumb 485 City of Flint 486 Saginaw Area 487 Bay
City & Thumb 486-487 SUNRISE SIDE North of Bay City to Houghton Lake 488
E. Lansing-Mt. Pleasant Owosso, St. Lewis, St. Johns Mason,
Fowerville 489 Lansing Area 490-491 S.W. Michigan Area Battle Creek - Kalamazoo 492
Jackson 493 Big Rapids Area 494 Ludington Area 495 Grand
Rapids and Muskegon Area 496 SUNSET SIDE Grand Traverse Cadillac & Manistee 497 Top of the Mitt Gaylord - Petosky Charlevoix - Cheboygan Alpena - Mackinaw
St. Ignace, Sou Ste. Maries 498 Western U P 499 Western U
P