Area code 312 is an area code located in the North American Numbering Plan (NANP) in the U.S. state of Illinois. The 312 area code serves the northern and western portions of the city of Chicago and its suburbs, including the Loop, Lakeview, Lincoln Park, and Wicker Park. It also includes the suburbs of Oak Park, Elmwood Park, Forest Park, River Forest, and Cicero.
What Area Does Area Code 312 Cover?
Area code 312 covers the northern and western portions of the city of Chicago and its suburbs, including the Loop, Lakeview, Lincoln Park, and Wicker Park. It also includes the suburbs of Oak Park, Elmwood Park, Forest Park, River Forest, and Cicero.
History of Area Code 312
Area code 312 was originally assigned to the entire Chicago metropolitan area in 1947. It was split in 1989 to form area code 708, which serves the south and west suburbs of Chicago. In 1996, area code 312 was further split to form area code 847, which serves the northern suburbs and exurbs of Chicago.
How to Dial Intra-Area Code 312 Calls?
When dialing a number within area code 312, the callers must dial the full 10-digit phone number. This includes the 3-digit area code and the 7-digit phone number.
How to Dial Inter-Area Code 312 Calls?
When dialing a number outside of area code 312, the callers must dial the full 11-digit phone number. This includes the 1-digit country code, the 3-digit area code and the 7-digit phone number.
What Time Zone is Area Code 312 in?
Area code 312 is located in the Central Time Zone. The Central Time Zone covers the states of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, and Wisconsin.
What Cities are Located in Area Code 312?
The cities located in area code 312 are: Chicago, Oak Park, Elmwood Park, Forest Park, River Forest, and Cicero.
Frequently Asked Questions (FAQs)
What State is Area Code 312 in?
Area code 312 is located in the U.S. state of Illinois.
What Time Zone is Area Code 312 in?
Area code 312 is located in the Central Time Zone.
What Cities are Located in Area Code 312?
The cities located in area code 312 are: Chicago, Oak Park, Elmwood Park, Forest Park, River Forest, and Cicero.
How to Dial Intra-Area Code 312 Calls?
When dialing a number within area code 312, the callers must dial the full 10-digit phone number. This includes the 3-digit area code and the 7-digit phone number.
How to Dial Inter-Area Code 312 Calls?
When dialing a number outside of area code 312, the callers must dial the full 11-digit phone number. This includes the 1-digit country code, the 3-digit area code and the 7-digit phone number.
What Year was Area Code 312 Established?
Area code 312 was established in 1947.
What Area Does Area Code 312 Cover?
Area code 312 covers the northern and western portions of the city of Chicago and its suburbs, including the Loop, Lakeview, Lincoln Park, and Wicker Park. It also includes the suburbs of Oak Park, Elmwood Park, Forest Park, River Forest, and Cicero.
What is the NANP of Area Code 312?
Area code 312 is an area code located in the North American Numbering Plan (NANP) in the U.S. state of Illinois.
What is the Population of Area Code 312?
The population of area code 312 is approximately 8 million people.
What is the Land Area of Area Code 312?
The land area of area code 312 is approximately 1,500 square miles.
What is the Average Household Income in Area Code 312?
The average household income in area code 312 is approximately $65,000.
What is the Average Home Price in Area Code 312?
The average home price in area code 312 is approximately $250,000.
What is the Average Cost of Living in Area Code 312?
The average cost of living in area code 312 is approximately 15% higher than the national average.
What is the Average Temperature in Area Code 312?
The average temperature in area code 312 is approximately 50 degrees Fahrenheit.
What Type of Climate is in Area Code 312?
Area code 312 has a humid continental climate, with cold and snowy winters and warm and humid summers.
What Types of Industries are in Area Code 312?
The industries in area code 312 are diverse, with a focus on technology, financial services, healthcare, manufacturing, and transportation.