309 Area Code Information

Area code 309 covers 190 cities inside the state of Illinois. There are currently 11 area codes dividing up Illinois. Illinois area codes are used by over 12901563 residents across 102 different counties. Illinois became a state on December 3 1818.

The 309 is located in the Central Time Zone. There are 52 different phone service providers which use 556 different telephone exchange combinations

Counties using 309
Adams, Arapahoe, Bureau, Carroll, Champaign, Dewitt, Fulton, Grundy, Hamilton, Hancock, Henderson, Henry, Knox, Livingston, Macon, Marshall, Mason, McDonough, McLean, Mercer, New Castle, New York, Peoria, Riverside, Rock Island, San Francisco, Santa Clara, Schuyler, Scott, Stark, Tazewell, Vermilion, Warren, Whiteside, Woodford,

Cities using 309
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Other Illinois Area Codes
217 224 309 312 618 630 708 773 779 815 847

Top 10 Providers in 309
Verizon North, Ameritech Illinois, Sprint Communications, Bitwise Communications, Citizens Telecom, Cellco Partnership, Gallatin River, Mcleodusa Telecommunication, United States, Unknown ,

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