Iowa number prefixes
- Ainsworth
- Alburnett
- Allison
- Amana
- Anamosa
- Aplington
- Atkins
- Aurora
- Beaverdale
- Belle Plaine
- Bertram
- Birmingham
- Blairstown
- Bonaparte
- Brandon
- Brighton
- Burlington
- Cantril
- Cedar Falls
- Cedar Rapids
- Center Point
- Central City
- Clarksville
- Clutier
- Coggon
- Columbus City
- Columbus Junction
- Conesville
- Conroy
- Coppock
- Coralville
- Cotter
- Crawfordsville
- Danville
- Denmark
- Denver
- Dike
- Donnellson
- Dunkerton
- Dysart
- East Amana
- Elberon
- Elk Run Heights
- Ely
- Evansdale
- Fairbank
- Fairfax
- Farmington
- Fort Madison
- Franklin
- Frederika
- Fredonia
- Frytown
- Garrison
- Gilbertville
- Grandview
- Grundy Center
- Hazleton
- Hiawatha
- High Amana
- Hills
- Hillsboro
- Holland
- Homestead
- Houghton
- Hudson
- Independence
- Iowa City
- Janesville
- Jesup
- Kalona
- Keokuk
- Keosauqua
- Keswick
- Keystone
- Kinross
- Ladora
- La Porte City
- Leando
- Letts
- Lisbon
- Lockridge
- Lone Tree
- Luzerne
- Marengo
- Marion
- Martelle
- Mediapolis
- Middle Amana
- Middletown
- Millersburg
- Monticello
- Montrose
- Morley
- Morning Sun
- Morrison
- Mount Auburn
- Mount Pleasant
- Mount Sterling
- Mount Union
- Mount Vernon
- Newhall
- New Hartford
- New London
- Nichols
- North English
- North Liberty
- Norway
- Oakville
- Oelwein
- Olds
- Olin
- Ollie
- Oxford
- Packwood
- Palo
- Parkersburg
- Parnell
- Plainfield
- Pleasant Plain
- Prairieburg
- Quasqueton
- Raymond
- Readlyn
- Reinbeck
- Richland
- Riverside
- Robins
- Rome
- Rowley
- St. Paul
- Salem
- Shell Rock
- Shellsburg
- Shueyville
- Solon
- South Amana
- South English
- Springville
- Stanley
- Stockport
- Stone City
- Stout
- Swisher
- Tiffin
- Traer
- Tripoli
- University Heights
- Urbana
- Van Horne
- Victor
- Vining
- Vinton
- Walford
- Walker
- Wapello
- Washburn
- Washington
- Waterloo
- Watkins
- Waverly
- Wayland
- Webster
- Wellman
- West Amana
- West Branch
- West Burlington
- West Chester
- Westgate
- West Liberty
- West Point
- Westwood
- Williamsburg
- Winfield
- Winthrop
- Ackworth
- Adel
- Alden
- Algona
- Alleman
- Altoona
- Ames
- Ankeny
- Badger
- Bancroft
- Barnum
- Beaver
- Berkley
- Bevington
- Blairsburg
- Bode
- Bondurant
- Boone
- Bouton
- Boxholm
- Bradgate
- Buckeye
- Burt
- Callender
- Cambridge
- Carlisle
- Churdan
- Clare
- Clarion
- Clive
- Coalville
- Colfax
- Corwith
- Cumming
- Dakota City
- Dallas Center
- Dana
- Dawson
- Dayton
- Des Moines
- De Soto
- Dexter
- Diamondhead Lake
- Dows
- Duncombe
- Eagle Grove
- Earlham
- Elkhart
- Ellsworth
- Farnhamville
- Fenton
- Fort Dodge
- Fraser
- Garden City
- Gilbert
- Gilmore City
- Goldfield
- Gowrie
- Grand Junction
- Granger
- Grimes
- Harcourt
- Hardy
- Hartford
- Humboldt
- Huxley
- Indianola
- Irvington
- Jefferson
- Jewell Junction
- Johnston
- Kamrar
- Kelley
- Knierim
- Lakota
- Ledyard
- Lehigh
- Linden
- Livermore
- Lone Rock
- Luther
- Lu Verne
- McCallsburg
- Madrid
- Martensdale
- Maxwell
- Minburn
- Mitchellville
- Moorland
- Nevada
- Norwalk
- Ogden
- Otho
- Ottosen
- Paton
- Patterson
- Perry
- Pilot Mound
- Pioneer
- Pleasant Hill
- Pleasantville
- Polk City
- Popejoy
- Prairie City
- Radcliffe
- Randall
- Redfield
- Renwick
- Rippey
- Rodman
- Roland
- Runnells
- Rutland
- St. Benedict
- St. Joseph
- Sandyville
- Saylorville
- Sexton
- Sheldahl
- Slater
- Spring Hill
- Stanhope
- Story City
- Stratford
- Stuart
- Swan
- Swea City
- Thor
- Titonka
- Urbandale
- Valeria
- Van Meter
- Vincent
- Waukee
- Webster City
- Wesley
- West Bend
- West Des Moines
- Whittemore
- Williams
- Windsor Heights
- Winterset
- Woodward
- Woolstock
- Andover
- Andrew
- Arlington
- Asbury
- Atalissa
- Baldwin
- Balltown
- Bankston
- Bellevue
- Bennett
- Bernard
- Bettendorf
- Blue Grass
- Buffalo
- Burr Oak
- Calamus
- Calmar
- Camanche
- Cascade
- Castalia
- Center Junction
- Centralia
- Charlotte
- Clarence
- Clayton
- Clermont
- Clinton
- Colesburg
- Cresco
- Davenport
- Decorah
- Delaware
- Delhi
- Delmar
- De Witt
- Dixon
- Donahue
- Dubuque
- Dundee
- Durango
- Durant
- Dyersville
- Earlville
- Edgewood
- Eldridge
- Elgin
- Elkader
- Elkport
- Epworth
- Farley
- Farmersburg
- Fayette
- Fort Atkinson
- Fredericksburg
- Fruitland
- Garber
- Garnavillo
- Goose Lake
- Graf
- Grand Mound
- Greeley
- Guttenberg
- Harpers Ferry
- Hawkeye
- Holy Cross
- Hopkinton
- Jackson Junction
- Lamont
- La Motte
- Lansing
- Lawler
- Le Claire
- Lime Springs
- Long Grove
- Lost Nation
- Lowden
- Low Moor
- Luana
- Luxemburg
- McCausland
- McGregor
- Manchester
- Maquoketa
- Marquette
- Masonville
- Maynard
- Maysville
- Mechanicsville
- Miles
- Millville
- Monmouth
- Monona
- Muscatine
- New Albin
- New Liberty
- New Vienna
- North Buena Vista
- Onslow
- Ossian
- Osterdock
- Oxford Junction
- Panorama Park
- Park View
- Peosta
- Postville
- Preston
- Princeton
- Protivin
- Randalia
- Rickardsville
- Ridgeway
- Riverdale
- Rochester
- Ryan
- Sabula
- Sageville
- St. Donatus
- St. Lucas
- St. Olaf
- Sherrill
- Spillville
- Spragueville
- Springbrook
- Stanwood
- Stockton
- Strawberry Point
- Sumner
- Tipton
- Toronto
- Volga
- Wadena
- Walcott
- Waterville
- Waucoma
- Waukon
- Welton
- West Union
- Wheatland
- Wilton
- Worthington
- Wyoming
- Zwingle
- Ackley
- Adair
- Afton
- Agency
- Albia
- Albion
- Alexander
- Allerton
- Alta Vista
- Aredale
- Arispe
- Athelstan
- Bagley
- Barnes City
- Bassett
- Batavia
- Baxter
- Beacon
- Beaconsfield
- Beaman
- Belmond
- Benton
- Bevington
- Blakesburg
- Blockton
- Bloomfield
- Bolan
- Bradford
- Bridgewater
- Bristow
- Britt
- Brooklyn
- Buffalo Center
- Burchinal
- Bussey
- Carbon
- Carpenter
- Casey
- Centerville
- Chapin
- Chariton
- Charles City
- Chelsea
- Chester
- Chillicothe
- Cincinnati
- Clearfield
- Clear Lake
- Clemons
- Clio
- Collins
- Colo
- Colwell
- Conrad
- Conway
- Corning
- Corydon
- Coulter
- Creston
- Cromwell
- Crystal Lake
- Davis City
- Decatur City
- Deep River
- Delphos
- Delta
- Derby
- Diagonal
- Douds
- Dougherty
- Dows
- Drakesville
- Dumont
- Duncan
- East Peru
- Eddyville
- Eldon
- Eldora
- Ellston
- Elma
- Exline
- Fairfield
- Ferguson
- Fertile
- Floris
- Floyd
- Fontanelle
- Forest City
- Fremont
- Galt
- Garden Grove
- Garner
- Garwin
- Geneva
- Gibson
- Gilman
- Gladbrook
- Goodell
- Grafton
- Grand River
- Greene
- Greenfield
- Green Mountain
- Grinnell
- Guernsey
- Guthrie Center
- Hamilton
- Hampton
- Hanlontown
- Hansell
- Harper
- Hartwick
- Harvey
- Haverhill
- Hayesville
- Hayfield
- Hedrick
- Holiday Lake
- Hubbard
- Humeston
- Hutchins
- Ionia
- Iowa Falls
- Jamaica
- Joice
- Kanawha
- Kellerton
- Kellogg
- Kensett
- Kent
- Keomah Village
- Keota
- Kirkville
- Klemme
- Knoxville
- Lacona
- Lake Mills
- Lake Panorama
- Lambs Grove
- Lamoni
- Latimer
- Laurel
- Le Grand
- Leighton
- Leland
- Lenox
- Leon
- Le Roy
- Libertyville
- Lincoln
- Lineville
- Liscomb
- Little Cedar
- Lorimor
- Lovilia
- Lucas
- Lynnville
- McIntire
- Macksburg
- Maharishi Vedic City
- Malcom
- Maloy
- Manly
- Marble Rock
- Marshalltown
- Martinsburg
- Marysville
- Mason City
- Melbourne
- Melcher-Dallas
- Melrose
- Menlo
- Meservey
- Meyer
- Miller
- Millerton
- Milo
- Milton
- Mingo
- Mitchell
- Mona
- Monroe
- Montezuma
- Montour
- Moravia
- Moulton
- Mount Ayr
- Murray
- Mystic
- Nashua
- New Hampton
- New Haven
- New Providence
- New Sharon
- Newton
- New Virginia
- Nodaway
- Nora Springs
- North Washington
- Northwood
- Numa
- Oakland Acres
- Orchard
- Orient
- Osage
- Osceola
- Oskaloosa
- Otranto
- Ottumwa
- Owasa
- Panora
- Pella
- Plano
- Pleasanton
- Plymouth
- Portland
- Prescott
- Promise City
- Pulaski
- Rake
- Rathbun
- Reasnor
- Redding
- Rhodes
- Riceville
- Rock Falls
- Rockford
- Rockwell
- Rose Hill
- Roseville
- Rowan
- Rudd
- Russell
- St. Ansgar
- St. Anthony
- St. Charles
- St. Marys
- Scarville
- Searsboro
- Seymour
- Shannon City
- Sharpsburg
- Sheffield
- Sigourney
- Stacyville
- State Center
- Steamboat Rock
- Sully
- Sun Valley Lake
- Swaledale
- Tama
- Thayer
- Thompson
- Thornburg
- Thornton
- Tingley
- Toeterville
- Toledo
- Truro
- Udell
- Union
- Unionville
- University Park
- Van Wert
- Ventura
- Weldon
- Wellsburg
- What Cheer
- Whitten
- Williamson
- Woden
- Woodburn
- Yale
- Zearing
- Akron
- Albert City
- Alta
- Alton
- Alvord
- Anderson
- Anita
- Anthon
- Arcadia
- Archer
- Arion
- Armstrong
- Arnolds Park
- Arthur
- Ashton
- Aspinwall
- Atlantic
- Auburn
- Audubon
- Aurelia
- Avoca
- Ayrshire
- Bartlett
- Battle Creek
- Bayard
- Bedford
- Bentley
- Blanchard
- Blencoe
- Boyden
- Braddyville
- Brayton
- Breda
- Bronson
- Brunsville
- Buck Grove
- California Junction
- Calumet
- Carroll
- Carson
- Carter Lake
- Castana
- Charter Oak
- Chatsworth
- Cherokee
- Clarinda
- Cleghorn
- Climbing Hill
- Coburg
- Coin
- College Springs
- Coon Rapids
- Corley
- Correctionville
- Council Bluffs
- Craig
- Crescent
- Cumberland
- Curlew
- Cushing
- Cylinder
- Danbury
- Dedham
- Defiance
- Deloit
- Denison
- Dickens
- Dolliver
- Doon
- Dow City
- Dunlap
- Earling
- Early
- Elk Horn
- Elliott
- Emerson
- Emmetsburg
- Essex
- Estherville
- Everly
- Exira
- Farragut
- Fonda
- Fostoria
- Galva
- George
- Gillett Grove
- Glenwood
- Glidden
- Graettinger
- Grant
- Granville
- Gravity
- Gray
- Greenville
- Griswold
- Gruver
- Halbur
- Hamburg
- Hancock
- Harlan
- Harris
- Hartley
- Hastings
- Havelock
- Hawarden
- Henderson
- Hepburn
- Hinton
- Holstein
- Hornick
- Hospers
- Hull
- Ida Grove
- Imogene
- Inwood
- Ireton
- Irwin
- Jacksonville
- Jolley
- Kimballton
- Kingsley
- Kirkman
- Kiron
- Knierim
- Lake City
- Lake Park
- Lakeside
- Lake View
- Lanesboro
- Larchwood
- Larrabee
- Laurens
- Lawton
- Le Mars
- Lester
- Lewis
- Lidderdale
- Linn Grove
- Little Rock
- Little Sioux
- Logan
- Lohrville
- Loveland
- Lytton
- McClelland
- Macedonia
- Magnolia
- Mallard
- Malvern
- Manilla
- Manning
- Manson
- Mapleton
- Marathon
- Marcus
- Marne
- Massena
- Matlock
- Maurice
- Melvin
- Meriden
- Merrill
- Milford
- Minden
- Mineola
- Missouri Valley
- Modale
- Mondamin
- Moorhead
- Moville
- Nemaha
- Neola
- Newell
- New Market
- Northboro
- Oakland
- Ocheyedan
- Odebolt
- Okoboji
- Onawa
- Orange City
- Orleans
- Oto
- Oyens
- Pacific Junction
- Palmer
- Panama
- Paullina
- Percival
- Persia
- Peterson
- Pierson
- Pisgah
- Plover
- Pocahontas
- Pomeroy
- Portsmouth
- Primghar
- Quimby
- Ralston
- Randolph
- Red Oak
- Rembrandt
- Remsen
- Ricketts
- Rinard
- Ringsted
- River Sioux
- Riverton
- Rock Rapids
- Rock Valley
- Rockwell City
- Rodney
- Rolfe
- Rossie
- Royal
- Ruthven
- Sac City
- Salix
- Sanborn
- Schaller
- Schleswig
- Scranton
- Sergeant Bluff
- Shambaugh
- Shelby
- Sheldon
- Shenandoah
- Sibley
- Sidney
- Silver City
- Sioux Center
- Sioux City
- Sioux Rapids
- Sloan
- Smithland
- Soldier
- Somers
- Spencer
- Spirit Lake
- Stanton
- Storm Lake
- Struble
- Superior
- Sutherland
- Tabor
- Templeton
- Tennant
- Terril
- Thurman
- Treynor
- Truesdale
- Turin
- Twin Lakes
- Underwood
- Ute
- Vail
- Varina
- Villisca
- Wahpeton
- Wallingford
- Wall Lake
- Walnut
- Washta
- Webb
- Westfield
- West Okoboji
- Weston
- Westphalia
- Westside
- Whiting
- Willey
- Wiota
- Woodbine
- Yetter
- Yorktown