Area Code 708

The 708 area code covers a large swath of the Chicago area, including Cicero, Orland Park, Berwyn, Oak Lawn, and Oak Park. The 708 area code has been in use since 1989. Illinois Counties within Area Code 708: Cook, Will Illinois Major Cities within Area Code 708: Cicero, Orland Park, Berwyn, Oak Lawn, Oak Park, … Read more

Area Code 630

You’re in the right place if you’re looking for area code 630. Located in Illinois and covering Aurora, Naperville, Bolingbrook, and Wheaton, area code 630 was created from a split of area code 708. In 2007, 630 was overlaid with 331 to make it easier for people who live outside of Chicago to reach the … Read more

Area Code 618

Area code 618 is located in southern Illinois. It covers most of the southern part of the state, including Belleville and Granite City. Illinois Counties within Area Code 618: St. Clair, Madison, Williamson, Jackson, Franklin, Marion, Jefferson, Clinton, Randolph, Monroe, Saline, Jersey, Perry, Crawford, Fayette, Union, Lawrence, Wayne, Richland, Bond, Massac, Washington, Macoupin, White, Clay, … Read more

Area Code 464

The area code 464 was put into service as an all services overlay of area code 708 on January 21, 2022. The 464 area code serves southern suburbs of Chicago this includes the largest cities Berwyn, ¬†Blue Island, Burbank, Calumet City, Chicago Heights and more. Illinois Counties within Area Code 464: Cook, and parts of … Read more

Area Code 447

Area Code 447 is in Illinois, and it was officially put into service as an overlay of area code 217 on February 27, 2021. This area code serves the central Illinois, including the cities of Champaign, Danville, Charleston, Decatur, Quincy, Springfield and Urbana. Illinois Counties within Area Code 447: Adams, Bond, Brown, Cass, Champaign, Christian, … Read more

Area Code 331

The 331 Area Code was first put into service on October 7, 2007. It was an overlay for 630 area codes and served the same area. The 331 Area Code is located in Illinois. The code covers Aurora, Naperville, Bolingbrook and surrounding areas. It is also an overlay for area code 630. Illinois Counties within … Read more

Area Code 312

Area code 312 is a Chicago-based area code. It was created in 1947, making it one of the earliest area codes in the United States. Illinois Counties within Area Code 312: Cook Illinois Major Cities within Area Code 312: Chicago Area Code 312 Time Zone? Central time zone is also known as America/Chicago.

Area Code 224

The 224 area code covers northeastern Illinois, including Elgin, Waukegan, Arlington Heights and more. Illinois Counties within Area Code 224: Cook, Lake, Kane, McHenry. Illinois Major Cities within Area Code 224: Elgin, Waukegan, Arlington Heights, Evanston, Schaumburg, Palatine, Skokie, Des Plaines, Mount Prospect, Hoffman Estates, Glenview, Buffalo Grove, Carpentersville, Wheeling, Park Ridge, Northbrook, Elk Grove … Read more

Area Code 217

Area code 217 is located in central Illinois, covering Springfield, Champaign, and Decatur. Illinois Counties within Area Code 217: Champaign, Sangamon, Macon, Vermilion, Adams, Coles, Morgan, Christian, Macoupin, Logan, Montgomery, Effingham, Shelby, Hancock, Douglas, Edgar, Piatt, Pike, Clark, Moultrie, De Witt, Cass, Menard, Greene, Cumberland, Ford, Brown, Scott, Schuyler, Mason, Fayette, Iroquois, Bond, Jasper, Calhoun, … Read more

Area Code 309

Area code 309 is located in Illinois, and it covers the cities of Peoria, Bloomington, and Normal. Illinois Counties within Area Code 309: Peoria, McLean, Rock Island, Tazewell, Knox, Henry, Woodford, Fulton, McDonough, Warren, Mercer, Marshall, Mason, Whiteside, Bureau, Henderson, Stark, Schuyler, De Witt, Putnam. Illinois Major Cities within Area Code 309: Peoria, Bloomington, Normal, … Read more