Information for Area Code 815

815 Area Code belongs to the Illinois (IL) State.

Other cities in the 815 Area Code.

Belvidere, Bradley, Channahon, Crystal Lake, De Kalb, Dixon, Frankfort, Freeport, Harvard, Joliet, Kankakee, La Salle, Lockport, Loves Park, Machesney Park, Marengo, McHenry, Mendota, Morris, New Lenox, Ottawa, Peru, Plainfield, Pontiac, Princeton, Rochelle, Rock Falls, Rockford, Romeoville, Streator, Sycamore, Wonder Lake, Woodstock

Illinois (IL) also shares with these area codes:

| 217
| 224
| 309
| 312
| 331
| 618
| 630
| 708
| 773
| 779
| 815
| 847
| 872
     

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