What is an Area Code? An area code is a section of a telephone number that denotes the broad area that the phone receiving the call is based in. Area codes were first introduced circa 1947 for operator use only. Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 309 serves the state of Illinois.
The Table Below Shows the Towns and Cities That Use Area Code 309
| Abingdon Adair Albany Aledo Alexis Alpha Altona Anchor Andalusia Andover Annawan Armington Arrowsmith Astoria Atkinson Avon Banner Bardolph Bartonville Bath Bay View Gardens Bellevue Bellflower Benson Biggsville Bishop Hill Blandinsville Bloomington Bradford Brimfield Browning Bryant Buda Bushnell Cambridge Canton Carbon Cliff Carlock Chillicothe Cleveland Coal Valley Colchester Colfax Colona Congerville Cooksville Cordova Coyne Center Creve Coeur Cuba | Dallas City Danvers Deer Creek Delavan Downs Dunfermline Dunlap East Galesburg East Moline Easton East Peoria Ellisville Ellsworth Elmwood El Paso Erie Eureka Fairview Farmer City Farmington Forest City Galesburg Galva Geneseo Georgetown Germantown Hills Gilson Gladstone Glasford Goodfield Good Hope Goofy Ridge Green Valley Gridley Gulf Port Hampton Hanna City Havana Henderson Henry Heritage Lake Heyworth Hillsdale Hopedale Hopewell Hudson Industry Ipava Joy Kappa | Keithsburg Kewanee Kilbourne Kingston Mines Kirkwood Knoxville Lacon La Fayette Lake Camelot La Rose Le Roy Lewistown Lexington Littleton Little York Liverpool Lomax London Mills Mackinaw McLean Macomb Manito Mapleton Maquon Marietta Marquette Heights Matherville Media Metamora Milan Mineral Minier Minonk Moline Monmouth Morton Neponset New Boston Normal Norris North Henderson North Pekin Norwood Oak Grove Oak Run Oneida Oquawka Orion Panola Pekin | Peoria Peoria Heights Plymouth Port Byron Prairie City Princeville Rapids City Raritan Reynolds Rio Roanoke Rock Island Rock Island Arsenal Rome Roseville St. Augustine St. David San Jose Saybrook Sciota Seaton Secor Sherrard Silvis Smithfield South Pekin Sparland Spring Bay Stanford Stronghurst Table Grove Tennessee Topeka Toulon Towanda Tremont Twin Grove Varna Vermont Victoria Viola Washburn Washington Wataga West Peoria Williamsfield Windsor Woodhull Wyoming Yates City |