|
Region |
Cities |
Code |
|
Region |
Cities |
Code |
| IA | Burlington, Iowa City, Cedar Rapids, Waterloo and east central and southeastern Iowa | 319 | | IA | Decorah, Dubuque, Clinton, Davenport and eastern and northeastern Iowa | 563 |
| IA | Des Moines, Ames, Fort Dodge, Jefferson, Algona, Indianola and north central Iowa | 515 | | IA | Estherville, Council Bluffs, Sioux City, Sheldon, Denison and western Iowa | 712 |
| IA | Mason City, Oskaloosa, Creston, Pella, Ottumwa, Britt, Clear Lake, Fairfield and central Iowa | 641 | | ID | Idaho | 208 |
| IL | Aurora, Batavia, Geneva and western Chicago suburbs | 630 | | IL | Carbondale, Alton, Centralia, Mount Vernon and southern Illinois | 618 |
| IL | Champaign, Decatur, Urbana, Springfield and central Illinois | 217 | | IL | Chicago Heights, Tinley Park and southern Chicago suburbs | 708 |
| IL | Cicero, Berwyn, Oak Park and Chicago excluding downtown Chicago | 773 | | IL | downtown central Chicago area | 312 |
| IL | La Salle, De Kalb, Rockford, Freeport and northern Illinois excluding Chicago area | 815 | | IL | Peoria, Moline, Rock Island, Galesburg and central western Illinois | 309 |
| IL | Waukegan, Des Plaines, northwest Chicago suburbs and northeastern Illinois | 224 | | IL | Waukegan, Des Plaines, northwest Chicago suburbs and northeastern Illinois | 847 |
| IN | Evansville, New Albany, Terre Haute, Bloomington and southern Indiana | 812 | | IN | Fort Wayne, Decatur, Angola, Wabash and northeastern Indiana | 260 |
| IN | Gary, Valparaiso, Michigan City, Goodland, Fowler and northwestern Indiana | 219 | | IN | Indianapolis, Greenwood, Mooresville, Beech Grove and central Indiana | 317 |
| IN | Lafayette, Marion, Muncie, Richmond and central Indiana excluding Indianapolis | 765 | | IN | South Bend, Logansport, Elkhart, Nappanee and north central Indiana | 574 |