Illinois area codes, country 1, phone prefixes, call Illinois from another country: 1st international code, 2nd country number, 3rd area code. More indicative of country areas for calls are: zone code, city code and intercity code for national calls.
Country Abbreviation: US – IL
CALLING LANDLINE PHONES:
International calls:
00 1 (area code) (7 landline numbers)
International Code: 00 (from Europe and most countries) with some exceptions ; or 0011 (from Australia).
Country code: 1
Area code: There are 3 numbers. Fixed numbers are displayed as (x). They identify each region, territory or province of the country where we call.
How to call from ILLINOIS TO ANOTHER COUNTRY; the structure would be like this:
011 (prefix of the destination country) (area code) (landline numbers)
011 (country code of destination) (mobile or cell phone numbers)
ILLINOIS AREA CODES:
For example, if I want to call ARLINGTON HEIGHTS there are 2 options:
00 1 847 xxx xxxx / 0011 1 847 xxx xxxx (from Australia)
00 1 224 xxx xxxx / 0011 1 224 xxx xxxx (from Australia)
Call landlines Illinois area codes between cities (National):
– FROM ANOTHER LANDLINE OR CELL PHONE: 1 (area code) (7 landline numbers)
Example, call SPRINGFIELD from CHICAGO: 1 217 xxx xxxx
Example, call CHICAGO from SPRINGFIELD: 1 312 xxx xxxx / 1 773 xxx xxxx / 1 872 xxx xxxx
Call landlines area code within the same city (Local):
– FROM ANOTHER LANDLINE OR CELL PHONE: (area code) (7 landline numbers)
Example, call in CHICAGO: 312 xxx xxxx / 773 xxx xxxx / 872 xxx xxxx
Example, call in SPRINGFIELD: 217 xxx xxxx
| ARLINGTON HEIGHTS (847) or (224) | AURORA (630) or (331) | BELLEVILLE (618) |
| BERWYN (708) | BLOOMINGTON (309) | CARBONDALE (618) |
| CHAMPAIGN (217) | CHICAGO (312) or (773) or (872) | CHICAGO HEIGHTS (708) |
| CHICAGO LOOP (312) | CICERO (708) | DANVILLE (217) |
| DECATUR (217) | DEKALB (815) or (779) | DES PLAINES (847) or (224) |
| EFFINGHAM (217) | ELGIN (847) or (224) | EVANSTON (847) or (224) |
| FREEPORT (815) or (779) | HARRISBURG (618) | JOLIET (815) or (779) |
| KANKAKEE (815) or (779) | LA SALLE (815) or (779) | MOLINE (309) |
| MOUNT PROSPECT (847) or (224) | MOUNT VERNON (618) | NAPERVILLE (630) or (331) |
| OAK LAWN (708) | OAK PARK (708) | ORLAND PARK (708) |
| PALATINE (847) or (224) | PEORIA (309) | QUINCY (217) |
| ROCK ISLAND (309) | ROCKFORD (815) or (779) | SCHAUMBURG (847) or (224) |
| SKOKIE (847) or (224) | SPRINGFIELD (217) | WAUKEGAN (847) or (224) |
| WHEATON (630) or (331) | WOODSTOCK (815) or (779) |