Chicago is the third-largest city in the USA. The US country Code is +1. The Chicago area codes are 773, 312. For a local call you have to dial the area code 773 or 312.
If you want to call from Springfield to Chicago you have to dial +1 773, 312 and the telephone number of the person you want to reach. To call outside the USA you have to dial the country code of the country you want to reach, the local area code and the local telephone number.
List of Cities located close to Chicago:
| Area | Area Code |
|---|---|
| Alsip | 708 |
| Bedford Park | 708 |
| Bellwood | 708 |
| Berkeley | 708 |
| Berwyn | 708 |
| Blue Island | 708 |
| Bridgeview | 708 |
| Broadview | 708 |
| Brookfield | 708 |
| Burbank | 708 |
| Calumet City | 708 |
| Chicago Heights | 708 |
| Chicago Ridge | 708 |
| Cicero | 708 |
| Country Club Hills | 708 |
| Dolton | 708 |
| Evergreen Park | 708 |
| Flossmoor | 708 |
| Forest Park | 708 |
| Glenview Nas | 847 |
| Glenwood | 708 |
| Harvey | 708 |
| Harwood Heights | 773 |
| Hazel Crest | 708 |
| Hickory Hills | 708 |
| Hillside | 708 |
| Hines | 708 |
| Hometown | 708 |
| Homewood | 708 |
| Justice | 708 |
| La Grange | 708 |
| La Grange Park | 708 |
| Lansing | 708 |
| Lyons | 708 |
| Matteson | 708 |
| Maywood | 708 |
| Midlothian | 708 |
| Oak Forest | 708 |
| Oak Lawn | 708 |
| Oak Park | 708 |
| Olympia Fields | 708 |
| Orland Park | 708 |
| Palos Heights | 708 |
| Palos Hills | 708 |
| Palos Park | 708 |
| Park Forest | 708 |
| Posen | 708 |
| Richton Park | 708 |
| River Forest | 708 |
| Riverdale | 708 |
| Riverside | 708 |
| South Holland | 708 |
| Steger | 708 |
| Summit Argo | 708 |
| Thornton | 708 |
| Westchester | 708 |
| Western Springs | 708 |
| Willow Springs | 708 |
| Worth | 708 |
Last change: 23.04.2007