Illinois number prefixes
- Allenville
- Allerton
- Alsey
- Alvan
- Arcola
- Arenzville
- Argenta
- Arthur
- Ashland
- Ashmore
- Assumption
- Athens
- Atlanta
- Atwood
- Auburn
- Augusta
- Barry
- Basco
- Baylis
- Beardstown
- Beason
- Belgium
- Bement
- Benld
- Bentley
- Berlin
- Bethany
- Bingham
- Bismarck
- Blue Mound
- Bluffs
- Bondville
- Boody
- Bowen
- Broadlands
- Broadwell
- Brocton
- Buckley
- Buffalo
- Bulpitt
- Butler
- Camargo
- Camden
- Camp Point
- Cantrall
- Carlinville
- Carrollton
- Carthage
- Casey
- Catlin
- Cerro Gordo
- Champaign
- Chandlerville
- Chapin
- Charleston
- Chatham
- Chestnut
- Chrisman
- Cisco
- Clayton
- Clear Lake
- Clinton
- Coalton
- Coatsburg
- Coffeen
- Columbus
- Concord
- Cornland
- Cowden
- Curran
- Dallas City
- Dalton City
- Danville
- Dawson
- Decatur
- De Land
- Detroit
- De Witt
- Dieterich
- Divernon
- Donnellson
- Dorchester
- Eagarville
- East Gillespie
- Edinburg
- Effingham
- El Dara
- Eldred
- Elkhart
- Elliott
- Elvaston
- Emden
- Exeter
- Fairmount
- Farmersville
- Ferris
- Fillmore
- Findlay
- Fisher
- Fithian
- Florence
- Foosland
- Forsyth
- Franklin
- Garrett
- Gays
- Georgetown
- Gibson City
- Gifford
- Gillespie
- Girard
- Glasgow
- Golden
- Grandview
- Greenfield
- Greenup
- Greenview
- Griggsville
- Hamilton
- Hammond
- Harristown
- Hartsburg
- Harvel
- Henning
- Hettick
- Hillsboro
- Hillview
- Hindsboro
- Homer
- Hoopeston
- Hull
- Humboldt
- Hume
- Illiopolis
- Indianola
- Irving
- Ivesdale
- Jacksonville
- Jeisyville
- Jerome
- Jewett
- Kansas
- Kenney
- Kincaid
- Kinderhook
- La Harpe
- Lake Ka-Ho
- Lake of the Woods
- Lake Petersburg
- Langleyville
- LaPlace
- La Prairie
- Latham
- Leland Grove
- Lerna
- Liberty
- Lima
- Lincoln
- Litchfield
- Loami
- Loda
- Long Creek
- Longview
- Loraine
- Lovington
- Ludlow
- Lynnville
- Macon
- Mahomet
- Manchester
- Mansfield
- Maroa
- Marshall
- Martinsville
- Mason City
- Mattoon
- Mechanicsburg
- Melvin
- Mendon
- Meredosia
- Metcalf
- Middletown
- Milton
- Modesto
- Monticello
- Montrose
- Morrisonville
- Mound Station
- Mount Auburn
- Mount Clare
- Mount Olive
- Mount Pulaski
- Mount Sterling
- Mount Zion
- Moweaqua
- Muncie
- Murrayville
- Naples
- Nauvoo
- Nebo
- Neoga
- New Berlin
- New Canton
- New Holland
- Newman
- New Salem
- Niantic
- Nilwood
- Nokomis
- Oakford
- Oakland
- Oakwood
- Oconee
- Ogden
- Ohlman
- Olivet
- Oreana
- Owaneco
- Palmer
- Palmyra
- Pana
- Panama
- Paris
- Pawnee
- Paxton
- Payson
- Pearl
- Penfield
- Perry
- Pesotum
- Petersburg
- Philo
- Pittsfield
- Plainville
- Pleasant Hill
- Pleasant Plains
- Pontoosuc
- Potomac
- Quincy
- Rankin
- Rantoul
- Raymond
- Redmon
- Ridge Farm
- Ripley
- Riverton
- Roberts
- Rochester
- Roodhouse
- Rossville
- Royal
- Rushville
- Sadorus
- St. Joseph
- San Jose
- Savoy
- Sawyerville
- Schram City
- Scottville
- Seymour
- Shelbyville
- Sherman
- Shumway
- Sibley
- Sidell
- Sidney
- Sigel
- Sorento
- Southern View
- South Jacksonville
- Spaulding
- Springfield
- Standard City
- Stewardson
- Stonington
- Strasburg
- Sullivan
- Tallula
- Taylor Springs
- Taylorville
- Teutopolis
- Thayer
- Thomasboro
- Tilton
- Time
- Toledo
- Tolono
- Tovey
- Tower Hill
- Tuscola
- Urbana
- Ursa
- Valley City
- Vermilion
- Versailles
- Villa Grove
- Virden
- Virginia
- Waggoner
- Walshville
- Wapella
- Warrensburg
- Warsaw
- Watson
- Waverly
- Waynesville
- Weldon
- Wenonah
- Westervelt
- Westfield
- West Point
- West Union
- Westville
- Wheeler
- White City
- White Hall
- White Heath
- Williamsville
- Wilmington
- Wilsonville
- Winchester
- Windsor
- Witt
- Woodson
- 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
- Addieville
- Albers
- Albion
- Alhambra
- Allendale
- Alma
- Alorton
- Altamont
- Alton
- Alto Pass
- Anna
- Annapolis
- Ashley
- Ava
- Aviston
- Baldwin
- Bartelso
- Batchtown
- Beckemeyer
- Beecher City
- Belknap
- Belle Prairie City
- Belle Rive
- Belleville
- Bellmont
- Benton
- Bethalto
- Bluford
- Bone Gap
- Bonnie
- Breese
- Bridgeport
- Brighton
- Brooklyn
- Brookport
- Broughton
- Browns
- Brownstown
- Brussels
- Buckner
- Buncombe
- Bunker Hill
- Burnt Prairie
- Bush
- Cahokia
- Cairo
- Calhoun
- Cambria
- Campbell Hill
- Carbondale
- Carlyle
- Carmi
- Carrier Mills
- Carterville
- Caseyville
- Cave-In-Rock
- Central City
- Centralia
- Centreville
- Chester
- Chesterfield
- Christopher
- Cisne
- Claremont
- Clay City
- Cobden
- Collinsville
- Colp
- Columbia
- Coulterville
- Crab Orchard
- Crainville
- Creal Springs
- Crossville
- Cutler
- Cypress
- Dahlgren
- Damiansville
- Darmstadt
- De Soto
- Dix
- Dongola
- Dowell
- Du Bois
- Dupo
- Du Quoin
- East Alton
- East Cape Girardeau
- East Carondelet
- East St. Louis
- Eddyville
- Edgewood
- Edwardsville
- Eldorado
- Elizabethtown
- Elkville
- Ellis Grove
- Elsah
- Energy
- Enfield
- Equality
- Evansville
- Ewing
- Fairfield
- Fairmont City
- Fairview Heights
- Farina
- Fayetteville
- Fidelity
- Fieldon
- Flat Rock
- Flora
- Floraville
- Freeburg
- Freeman Spur
- Fults
- Galatia
- Germantown
- Glen Carbon
- Godfrey
- Golconda
- Golden Gate
- Goreville
- Gorham
- Grafton
- Grand Tower
- Granite City
- Grantfork
- Grayville
- Greenville
- Hamburg
- Hamel
- Hanaford
- Hardin
- Harrisburg
- Harrison
- Hartford
- Hecker
- Herrick
- Herrin
- Hidalgo
- Highland
- Hoffman
- Holiday Shores
- Hoyleton
- Huey
- Hurst
- Hutsonville
- Ina
- Iola
- Irvington
- Iuka
- Jeffersonville
- Jerseyville
- Johnsonville
- Johnston City
- Jonesboro
- Joppa
- Junction
- Junction City
- Kampsville
- Kane
- Karnak
- Kaskaskia
- Keenes
- Keensburg
- Kell
- Keyesport
- Kinmundy
- Lawrenceville
- Lebanon
- Lenzburg
- Livingston
- Louisville
- McClure
- Macedonia
- McLeansboro
- Madison
- Maeystown
- Makanda
- Marine
- Marion
- Marissa
- Maryville
- Mascoutah
- Mason
- Maunie
- Medora
- Metropolis
- Mill Creek
- Mill Shoals
- Millstadt
- Mitchell
- Mound City
- Mounds
- Mount Carmel
- Mount Erie
- Mount Vernon
- Muddy
- Mulberry Grove
- Mulkeytown
- Murphysboro
- Nashville
- Nason
- New Athens
- New Baden
- New Burnside
- New Douglas
- New Grand Chain
- New Haven
- New Minden
- Newton
- Noble
- Norris City
- North City
- Oakdale
- Oblong
- Odin
- O'Fallon
- Okawville
- Old Ripley
- Old Shawneetown
- Olive Branch
- Olmsted
- Olney
- Omaha
- Opdyke
- Orient
- Otterville
- Paderborn
- Palestine
- Parkersburg
- Patoka
- Percy
- Phillipstown
- Pierron
- Pinckneyville
- Pittsburg
- Pocahontas
- Pontoon Beach
- Prairie du Rocher
- Pulaski
- Radom
- Raleigh
- Ramsey
- Red Bud
- Rentchler
- Richview
- Ridgway
- Robinson
- Rockbridge
- Rockwood
- Rose Hill
- Rosewood Heights
- Rosiclare
- Roxana
- Royal Lakes
- Royalton
- Ruma
- Russellville
- Sailor Springs
- St. Elmo
- Ste. Marie
- St. Francisville
- St. Jacob
- St. Johns
- St. Libory
- St. Peter
- Salem
- Sandoval
- Sauget
- Scott AFB
- Sesser
- Shawneetown
- Shiloh
- Shipman
- Simpson
- Sims
- Smithboro
- Smithton
- South Roxana
- Sparta
- Spillertown
- Springerton
- Staunton
- Steeleville
- Stonefort
- Stoy
- Summerfield
- Sumner
- Swansea
- Tamaroa
- Tamms
- Thebes
- Thompsonville
- Tilden
- Trenton
- Troy
- Ullin
- Valier
- Valmeyer
- Vandalia
- Venedy
- Venice
- Vergennes
- Vernon
- Vienna
- Walnut Hill
- Waltonville
- Wamac
- Washington Park
- Waterloo
- Wayne City
- West City
- West Frankfort
- West Salem
- West York
- Whiteash
- White City
- Williamson
- Willisville
- Willow Hill
- Wilsonville
- Woodlawn
- Wood River
- Worden
- Xenia
- Yale
- Zeigler
- Addison
- Aurora
- Bartlett
- Batavia
- Bensenville
- Big Rock
- Bloomingdale
- Bolingbrook
- Boulder Hill
- Burr Ridge
- Campton Hills
- Carol Stream
- Clarendon Hills
- Darien
- Downers Grove
- Elburn
- Elmhurst
- Geneva
- Glendale Heights
- Glen Ellyn
- Hanover Park
- Hinsdale
- Itasca
- Kaneville
- Lemont
- Lily Lake
- Lisle
- Lombard
- Millbrook
- Montgomery
- Naperville
- North Aurora
- Oak Brook
- Oakbrook Terrace
- Oswego
- Plano
- Prestbury
- Roselle
- St. Charles
- Streamwood
- Sugar Grove
- Villa Park
- Virgil
- Warrenville
- Wayne
- West Chicago
- Westmont
- Wheaton
- Willowbrook
- Winfield
- Wood Dale
- Woodridge
- Yorkville
- Alsip
- Bedford Park
- Beecher
- Bellwood
- Berkeley
- Berwyn
- Blue Island
- Bridgeview
- Broadview
- Brookfield
- Burbank
- Burnham
- Calumet City
- Calumet Park
- Chicago Heights
- Chicago Ridge
- Cicero
- Country Club Hills
- Countryside
- Crestwood
- Crete
- Dixmoor
- Dolton
- East Hazel Crest
- Elmwood Park
- Evergreen Park
- Flossmoor
- Ford Heights
- Forest Park
- Forest View
- Glenwood
- Harvey
- Harwood Heights
- Hazel Crest
- Hickory Hills
- Hillside
- Hodgkins
- Homer Glen
- Hometown
- Homewood
- Indian Head Park
- Justice
- La Grange
- La Grange Park
- Lansing
- Lynwood
- Lyons
- McCook
- Markham
- Matteson
- Maywood
- Melrose Park
- Merrionette Park
- Midlothian
- Mokena
- Monee
- Norridge
- Northlake
- North Riverside
- Oak Forest
- Oak Lawn
- Oak Park
- Olympia Fields
- Orland Hills
- Orland Park
- Palos Heights
- Palos Hills
- Palos Park
- Park Forest
- Peotone
- Phoenix
- Posen
- Richton Park
- Riverdale
- River Forest
- River Grove
- Riverside
- Robbins
- Sauk Village
- South Chicago Heights
- South Holland
- Steger
- Stickney
- Stone Park
- Summit
- Thornton
- Tinley Park
- University Park
- Westchester
- Western Springs
- Willowbrook
- Willow Springs
- Worth
- Adeline
- Amboy
- Apple Canyon Lake
- Apple River
- Arlington
- Aroma Park
- Ashkum
- Ashton
- Beaverville
- Belvidere
- Bonfield
- Bourbonnais
- Braceville
- Bradley
- Braidwood
- Buckingham
- Bull Valley
- Bureau Junction
- Byron
- Cabery
- Caledonia
- Campus
- Capron
- Carbon Hill
- Cedar Point
- Cedarville
- Chadwick
- Channahon
- Chatsworth
- Chebanse
- Chemung
- Chenoa
- Cherry
- Cherry Valley
- Cissna Park
- Clifton
- Coal City
- Coleta
- Como
- Compton
- Cornell
- Cortland
- Crescent City
- Crest Hill
- Creston
- Crystal Lake
- Crystal Lawns
- Cullom
- Dakota
- Dalzell
- Dana
- Danforth
- Davis
- Davis Junction
- Dayton
- Deer Grove
- DeKalb
- De Pue
- Diamond
- Dixon
- Donovan
- Dover
- Durand
- Dwight
- Earlville
- East Brooklyn
- East Dubuque
- Elizabeth
- Elwood
- Emington
- Essex
- Fairbury
- Fairmont
- Flanagan
- Forrest
- Forreston
- Frankfort
- Frankfort Square
- Franklin Grove
- Freeport
- Fulton
- Galena
- Garden Prairie
- Gardner
- Genoa
- German Valley
- Gilman
- Godley
- Grand Detour
- Grand Ridge
- Grant Park
- Granville
- Greenwood
- Hanover
- Harmon
- Harvard
- Hebron
- Hennepin
- Herscher
- Hillcrest
- Hinckley
- Holiday Hills
- Hollowayville
- Hooppole
- Hopkins Park
- Ingalls Park
- Iroquois
- Irwin
- Johnsburg
- Joliet
- Kangley
- Kankakee
- Kempton
- Kingston
- Kinsman
- Kirkland
- Ladd
- Lake Holiday
- Lakemoor
- Lake Summerset
- Lakewood
- Lakewood Shores
- La Moille
- Lanark
- LaSalle
- Leaf River
- Lee
- Leland
- Lena
- Leonore
- Limestone
- Lisbon
- Lockport
- Long Point
- Lostant
- Lost Nation
- Loves Park
- Lyndon
- McCullom Lake
- McHenry
- Machesney Park
- McNabb
- Magnolia
- Malden
- Malta
- Manhattan
- Manlius
- Manteno
- Maple Park
- Marengo
- Mark
- Marseilles
- Martinton
- Mazon
- Mendota
- Menominee
- Milford
- Millbrook
- Milledgeville
- Millington
- Minooka
- Momence
- Monroe Center
- Morris
- Morrison
- Mount Carroll
- Mount Morris
- Naplate
- Nelson
- Newark
- New Bedford
- New Lenox
- New Milford
- Nora
- North Utica
- Odell
- Oglesby
- Ohio
- Onarga
- Orangeville
- Oregon
- Ottawa
- Papineau
- Paw Paw
- Pearl City
- Pecatonica
- Peru
- Piper City
- Plainfield
- Plattville
- Polo
- Pontiac
- Poplar Grove
- Prairie Grove
- Preston Heights
- Princeton
- Prophetstown
- Ransom
- Reddick
- Richmond
- Ridott
- Ringwood
- Rochelle
- Rock City
- Rockdale
- Rock Falls
- Rockford
- Rockton
- Romeoville
- Roscoe
- Rutland
- St. Anne
- Sammons Point
- Sandwich
- Saunemin
- Savanna
- Scales Mound
- Seatonville
- Seneca
- Shabbona
- Shannon
- Sheffield
- Sheldon
- Sheridan
- Shorewood
- Somonauk
- South Beloit
- South Wilmington
- Spring Grove
- Spring Valley
- Standard
- Sterling
- Steward
- Stillman Valley
- Stockton
- Strawn
- Streator
- Sublette
- Sun River Terrace
- Sycamore
- Symerton
- Tampico
- Thawville
- The Galena Territory
- Thomson
- Timberlane
- Tiskilwa
- Toluca
- Tonica
- Troy Grove
- Union
- Union Hill
- Verona
- Walnut
- Warren
- Waterman
- Watseka
- Wellington
- Wenona
- West Brooklyn
- Wilmington
- Winnebago
- Winslow
- Wonder Lake
- Woodland
- Woodstock
- Wyanet
- Algonquin
- Antioch
- Arlington Heights
- Bannockburn
- Barrington
- Barrington Hills
- Beach Park
- Buffalo Grove
- Burlington
- Carpentersville
- Cary
- Channel Lake
- Deerfield
- Deer Park
- Des Plaines
- East Dundee
- Elgin
- Elk Grove Village
- Evanston
- Forest Lake
- Fox Lake
- Fox Lake Hills
- Fox River Grove
- Franklin Park
- Gages Lake
- Gilberts
- Glencoe
- Glenview
- Golf
- Grandwood Park
- Grayslake
- Green Oaks
- Gurnee
- Hainesville
- Hampshire
- Hawthorn Woods
- Highland Park
- Highwood
- Hoffman Estates
- Huntley
- Indian Creek
- Inverness
- Island Lake
- Kenilworth
- Kildeer
- Knollwood
- Lake Barrington
- Lake Bluff
- Lake Catherine
- Lake Forest
- Lake in the Hills
- Lake Villa
- Lake Zurich
- Libertyville
- Lincolnshire
- Lincolnwood
- Lindenhurst
- Long Grove
- Long Lake
- Mettawa
- Morton Grove
- Mount Prospect
- Mundelein
- Niles
- North Barrington
- Northbrook
- North Chicago
- Northfield
- Oakwood Hills
- Old Mill Creek
- Palatine
- Park City
- Park Ridge
- Pingree Grove
- Pistakee Highlands
- Port Barrington
- Prospect Heights
- Riverwoods
- Rolling Meadows
- Rosemont
- Round Lake
- Round Lake Beach
- Round Lake Heights
- Round Lake Park
- Schaumburg
- Schiller Park
- Skokie
- Sleepy Hollow
- South Barrington
- South Elgin
- Third Lake
- Tower Lakes
- Trout Valley
- Venetian Village
- Vernon Hills
- Volo
- Wadsworth
- Wauconda
- Waukegan
- West Dundee
- Wheeling
- Wilmette
- Winnetka
- Winthrop Harbor
- Zion