Hartford - 618 dialing code
Dialing code +1 (618) cities
- Brighton
- Centreville
- Fairfield
- Livingston
- Macedonia
- Vernon
- Wilsonville
- Mount Vernon
- Bridgeport
- Collinsville
- Crossville
- Edwardsville
- Fayetteville
- Joppa
- Madison
- Russellville
- Shiloh
- Waterloo
- Benton
- Columbia
- Greenville
- Hartford
- Louisville
- Marion
- Newton
- Troy
- Evansville
- St. Johns
- Washington Park
- Williamson
- Alma
- Belleville
- Central City
- Chester
- Salem
- Buckner
- Hamburg
- Harrisburg
- Harrison
- Highland
- Jonesboro
- Junction City
- Nashville
- Omaha
- Palestine
- Pocahontas
- Willisville
- Woodlawn
- Oakdale
- Edgewood
- Cutler
- Alhambra
- Albion
- Allendale
- Cypress
- Cambria
- Claremont
- Pittsburg
- Carbondale
- Ridgway
- New Haven
- Brooklyn
- Thompsonville
- Golden Gate
- Raleigh
- Trenton
- White City
- Mount Carmel
- Baldwin
- Venice
- Cairo
- De Soto
- Sumner
- Vienna
- Jeffersonville
- Calhoun
- Mitchell
- Sparta
- Lawrenceville
- Pulaski
- Addieville
- Albers
- Alorton
- Altamont
- Alton
- Alto Pass
- Anna
- Annapolis
- Ashley
- Ava
- Aviston
- Bartelso
- Batchtown
- Beckemeyer
- Beecher City
- Belknap
- Belle Prairie City
- Belle Rive
- Bellmont
- Bethalto
- Bluford
- Bone Gap
- Bonnie
- Breese
- Brookport
- Broughton
- Browns
- Brownstown
- Brussels
- Buncombe
- Bunker Hill
- Burnt Prairie
- Bush
- Cahokia
- Campbell Hill
- Carlyle
- Carmi
- Carrier Mills
- Carterville
- Caseyville
- Cave-In-Rock
- Centralia
- Chesterfield
- Christopher
- Cisne
- Clay City
- Cobden
- Colp
- Coulterville
- Crab Orchard
- Crainville
- Creal Springs
- Dahlgren
- Damiansville
- Darmstadt
- Dix
- Dongola
- Dowell
- Du Bois
- Dupo
- Du Quoin
- East Alton
- East Cape Girardeau
- East Carondelet
- East St. Louis
- Eddyville
- Eldorado
- Elizabethtown
- Elkville
- Ellis Grove
- Elsah
- Energy
- Enfield
- Equality
- Ewing
- Fairmont City
- Fairview Heights
- Farina
- Fidelity
- Fieldon
- Flat Rock
- Flora
- Floraville
- Freeburg
- Freeman Spur
- Fults
- Galatia
- Germantown
- Glen Carbon
- Godfrey
- Golconda
- Goreville
- Gorham
- Grafton
- Grand Tower
- Granite City
- Grantfork
- Grayville
- Hamel
- Hanaford
- Hardin
- Hecker
- Herrick
- Herrin
- Hidalgo
- Hoffman
- Holiday Shores
- Hoyleton
- Huey
- Hurst
- Hutsonville
- Ina
- Iola
- Irvington
- Iuka
- Jerseyville
- Johnsonville
- Johnston City
- Junction
- Kampsville
- Kane
- Karnak
- Kaskaskia
- Keenes
- Keensburg
- Kell
- Keyesport
- Kinmundy
- Lebanon
- Lenzburg
- McClure
- McLeansboro
- Maeystown
- Makanda
- Marine
- Marissa
- Maryville
- Mascoutah
- Mason
- Maunie
- Medora
- Metropolis
- Mill Creek
- Mill Shoals
- Millstadt
- Mound City
- Mounds
- Mount Erie
- Muddy
- Mulberry Grove
- Mulkeytown
- Murphysboro
- Nason
- New Athens
- New Baden
- New Burnside
- New Douglas
- New Grand Chain
- New Minden
- Noble
- Norris City
- North City
- Oblong
- Odin
- O'Fallon
- Okawville
- Old Ripley
- Old Shawneetown
- Olive Branch
- Olmsted
- Olney
- Opdyke
- Orient
- Otterville
- Paderborn
- Parkersburg
- Patoka
- Percy
- Phillipstown
- Pierron
- Pinckneyville
- Pontoon Beach
- Prairie du Rocher
- Radom
- Ramsey
- Red Bud
- Rentchler
- Richview
- Robinson
- Rockbridge
- Rockwood
- Rose Hill
- Rosewood Heights
- Rosiclare
- Roxana
- Royal Lakes
- Royalton
- Ruma
- Sailor Springs
- St. Elmo
- Ste. Marie
- St. Francisville
- St. Jacob
- St. Libory
- St. Peter
- Sandoval
- Sauget
- Scott AFB
- Sesser
- Shawneetown
- Shipman
- Simpson
- Sims
- Smithboro
- Smithton
- South Roxana
- Spillertown
- Springerton
- Staunton
- Steeleville
- Stonefort
- Stoy
- Summerfield
- Swansea
- Tamaroa
- Tamms
- Thebes
- Tilden
- Ullin
- Valier
- Valmeyer
- Vandalia
- Venedy
- Vergennes
- Walnut Hill
- Waltonville
- Wamac
- Wayne City
- West City
- West Frankfort
- West Salem
- West York
- Whiteash
- Willow Hill
- Wood River
- Worden
- Xenia
- Yale
- Zeigler