United States Country Codes


Illinois State Flag
Illinois Area Codes

 
To call Illinois, dial the following:

Exit Code + 1 + Area Code + The Number


* Do not dial the plus (+) symbols

Illinois Information

World Time Zones The United States country code is 1
World Time Zones The local time in Illinois, United States is (CLICK FOR TIME ZONES)
Mobile Country Codes for Illinois Get the mobile country codes for Illinois, United States.
State Information Information about Illinois:
Illinois on Wikipedia
The currency of United States is the United States Dollar.
The capital of Illinois is Springfield
Largest Cities in Illinois by population: Chicago, Aurora, Rockford, Joliet, Naperville, Springfield, Peoria, Elgin, Waukegan, Cicero
Country Information United States Information:
United States on Wikipedia
The currency of United States is the United States Dollar.
United States is often referred to as US or USA.
The nationality of the United States is American.
The capital of United States is Washington, D.C.
Largest Cities in United States by population: New York, Los Angeles, Chicago, Houston, Philadelphia, Phoenix, San Antonio, San Diego, Dallas, San Jose
United States Emergency Numbers United States Emergency Numbers
For an emergency in United States, dial the following numbers:
Medical - 911
Fire - 911
Police - 911
Local Telephone Prefix Local Telephone Prefix:
1 is the trunk code for United States
Country Map United States Map:
Illinois area code map
The US country code and Illinois US area code chart below gives you the necessary information for calling American cities. For international dialing codes and detailed dialing instructions to Illinois United States, use our drop down boxes at the top of this page or check out our easy-to-use country code search tool.



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Area Codes 871-900 (of 1286)
Illinois CitiesIllinois Area Codes
Ohlman 217
Okawville 618
Olive Branch 618
Olmsted 618
Olney 618
Olympia Fields 708
Omaha 618
Onarga 217 or 815
Oneida 309
Opdyke 618
Ophiem 309
Oquawka 309
Orangeville 815
Oraville 618
Oreana 217
Oregon 815
Orient 618
Orion 309
Orland Park 708
Osco 309
Oswego 331 or 630
Ottawa 815
Owaneco 217
Ozark 618
Palatine 224 or 847
Palestine 618
Palmer 217
Palmyra 217 or 618
Paloma 217
Palos Heights 708

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Telephone Area Codes For Illinois, United States



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