Colorado Area Codes
Colorado Area Code Map
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Each of the 4 area codes in Colorado are listed below. The area code listing below lists area codes in several sections. First, Colorado area codes by city are shown for the largest cities. Next, the list shows Colorado area codes by number. If you still can't find what you are looking for and the searches below do not help, the area code finder on our home page may be what you are looking for.
Area Codes for the Largest Cities in Colorado
- Arvada 303/720
- Aurora 303/720
- Boulder 303/720
- Brighton 303/720
- Broomfield 720/303
- Castle Rock 720/303
- Castlewood 720/303
- Colorado Springs 719
- Columbine 303/720
- Commerce City 303/720
- Denver 303/720
- Englewood 303/720
- Fort Collins 970
- Grand Junction 970
- Greeley 970
- Highlands Ranch 303/720
- Ken Caryl 720/303
- Lafayette 720/303
- Lakewood 720/303
- Littleton 303/720
- Longmont 303/720
- Loveland 303/720/970
- Northglenn 303/720
- Parker 303/720
- Pueblo 719
- Security-widefield 719
- Southglenn 720/303
- Thornton 720/303
- Westminster 720/303
- Wheat Ridge 303/720
Colorado Area Code List
303 area code
Timezone: Mountain
Current time: 5:37pm
04/02/1995: Area code 303 was split, and some of the phone numbers had to be updated to area code 970 on that date.
06/01/1998: Area code 720 was created as an overlay to area code 303.
- Adams City
- Af Acctg And Finance Ctr
- Af Reserve Pers Ctr
- Affiliated Banks Service Co
- Allenspark
- Arapahoe County Offices
- Arvada
- Att Information Systems
- Aurora
- Bailey
- Bennett
- Black Forest
- Black Hawk
- Blackhawk
- Blue Cross Blue Shield Of Co
- Boulder
- Bow Mar
- Brighton
- Broomfield
- Buckley Air Natl Guard Base
- Buckley Ang
- Buffalo Creek
- Byers
- Castle Rock
- Centennial
- Centennialxx
- Central Bank And Trust
- Central City
- Cherry Hills Village
- Colorado D M V Dept Of Rev
- Colorado Dept Of Revenue
- Columbine Valley
- Commerce City
- Conifer
- Dacono
- Deckers
- Deer Trail
- Denver
- Denver Federal Center
- Denver Water Board
- Dumont
- Dupont
- East Lake
- Eastlake
- Edgewater
- Elbert
- Eldorado Springs
- Elizabeth
- Empire
- Englewood
- Erie
- Evergreen
- Federal Bldg/us Courthouse
- Federal Heights
- Fingerhut
- Firestone
- First Interstate Bank
- Fort Logan
- Fort Lupton
- Foxfield
- Foxton
- Franktown
- Frederick
- Ft Logan
- Ft Lupton
- Georgetown
- Glendale
- Golden
- Grant
- Green Mountain
- Greenwood Village
- Henderson
- Highlands
- Highlands Ranch
- Hudson
- Hygiene
- I B M
- Idaho Springs
- Idledale
- Indian Hills
- Irondale
- Jamestown
- Jefferson County
- Keenesburg
- Kiowa
- Kittredge
- Lafayette
- Lakeside
- Lakewood
- Larkspur
- Littleton
- Littleton City Offices
- Lochbuie
- Lone Tree
- Lonetree
- Longmont
- Louisville
- Louviers
- Lowry
- Lyons
- Montbello
- Montclair
- Morrison
- National Farmers Union
- Nederland
- Neodata
- Neodata Business Reply
- Niwot
- Northglenn
- Norwest Bank Denver
- Palmer Lake
- Parker
- Pine
- Pinecliffe
- Public Service Company
- Residence Halls Univ Of Co
- Roggen
- Rollinsville
- Sedalia
- Shawnee
- Sheridan
- Silver Plume
- Small Business Adm
- Storage Technology Corp
- Strasburg
- Superior
- Thornton
- U S West Communications
- Univ Of Colorado Med Ctr
- University Of Colorado
- University Of Denver
- Us Bank
- Us Court Of Appeals 10th Cir
- Ward
- Watkins
- Wattenburg
- Welby
- Western Area
- Westminster
- Wheat Ridge
- Adams State College
- Agate
- Aguilar
- Alamosa
- Alma
- Alpine
- Alpine Village
- Amo
- Antonito
- Aqua Ramon
- Arapahoe
- Ark Valley Corr Facl
- Arlington
- Aroya
- Arriba
- Avondale
- Barton
- Baxter
- Baxterville
- Belle Plain
- Bents Fort
- Bents Old Fort
- Beshoar Jct
- Bessemer
- Bethune
- Beulah
- Big Bend
- Black Forest
- Blanca
- Blende
- Bonanza City
- Boncarbo
- Boone
- Bountiful
- Bovina
- Boyero
- Brandon
- Branson
- Brewster
- Bristol
- Broadacre
- Buckskin Joe
- Buena Vista
- Burlington
- C O Interstate Gas
- Cablevision
- Caddoa
- Cadet Station
- Calhan
- Campo
- Canon City
- Carlton
- Carmel
- Cascade
- Cedarwood
- Center
- Chama
- Cheney Center
- Cheraw
- Cheyenne Mountain Afb
- Cheyenne Mt Complex
- Cheyenne Mtn Afb
- Cheyenne Wells
- Chipita Park
- Chivington
- Cimarron Hills
- Cleora
- Climax
- Cmafb
- Co Spgs
- Co Spgs Utilities
- Coal Creek
- Coaldale
- Cokedale
- Colorado City
- Colorado College
- Colorado Lottery
- Colorado Springs
- Columbia House
- Como
- Compassion International
- Conejos
- Consolidated Space Operation
- Cotopaxi
- Creede
- Crestone
- Cripple Creek
- Crowley
- Crystal Hills
- Crystola
- Csoc
- Cuchara
- Cuchara Valley
- Current Inc
- Del Norte
- Delhi
- Deora
- Devine
- Divide
- Eads
- East Alamosa
- East Weston
- Eastonville
- Edison
- Edler
- El Moro
- El Rito
- Elkton
- Ellicott
- Ent Air Force Base
- Espinoza
- Estrella
- Exchange Natl Bank
- Fair View
- Fairmont
- Fairplay
- Falcon
- Falcon Afb
- Farisita
- Farista
- Federal Correctional Complex
- First National Bank
- First View
- Flagler
- Florence
- Florida
- Florissant
- Florissant Fossil Beds Natio
- Focus On The Family
- Forbes Park
- Fort Bent
- Fort Carson
- Fort Garland
- Fort Lyon
- Fountain
- Fowler
- Fox Creek
- Freeman
- Ft Bent
- Ft Carson
- Ft Garland
- Ft Lyon
- G P O
- Garcia
- Gardner
- Genoa
- Goldfield
- Granada
- Granite
- Great Sand Dunes National Mo
- Green Mountain Falls
- Greenwood
- Guffey
- Gulnare
- Hartman
- Hartsel
- Hasty
- Haswell
- Hawley
- Henry
- Hillside
- Hoehne
- Holly
- Homelake
- Hooper
- Horn Creek
- Howard
- Hugo
- Ilse
- Indian Creek
- Iron City
- Jansen
- Jaroso
- Jefferson
- John Martin Reservoir
- Johnson Village
- Karval
- Kim
- Kit Carson
- Koen
- Kornman
- La Isla
- La Jara
- La Junta
- La Valley
- La Veta
- Lake George
- Lamar
- Lariat
- Las Animas
- Las Mesitas
- Lascar
- Leadville
- Limon
- Limon Correctional Facility
- Lobatos
- Los Fuertes
- Los Pinas
- Lubers
- Ludlow
- Lycan
- Manassa
- Manitou Springs
- Manzanola
- Masonic Park
- Matheson
- Maxey
- Maxeyville
- May Valley
- Maysville
- Mc Clave
- Mesa
- Mesita
- Mirage
- Model
- Moffat
- Mogote
- Monarch
- Monte Vista
- Monument
- Monument Lake Park
- Monument Park
- Morgan
- Mosca
- Mount Princeton
- Mutual
- Nathrop
- Ninaview
- North Avondale
- North La Junta
- Numa
- Ojo
- Olney Springs
- Olympic Comm
- Ordway
- Ortiz
- Paisaje
- Palmer Lake
- Parkdale
- Penitentiary
- Penrose
- Peterson A F B
- Peterson Afb
- Peterson Air Force Base
- Peyton
- Pinon
- Pinon Canyon
- Plaza
- Poncha Springs
- Portland
- Pritchett
- Prospect Heights
- Prowers
- Pryor
- Pueblo
- Pueblo Army Depot
- Pueblo Depot Activity
- Pueblo West
- Punkin Center
- Ramah
- Red Wing
- Richfield
- Roberta
- Rockrimmon
- Rockvale
- Rocky Ford
- Romeo
- Rosita
- Rush
- Rye
- Saguache
- Saint Elmo
- Salida
- San Antonio
- San Francisco
- San Isabel
- San Luis
- San Miguel
- San Pablo
- San Pedro
- San Rafeal
- Sanford
- Sangre De Cristo Ranches
- Sargents School
- Schriever Afb
- Schriever Air Force Base
- Schriever Air Station
- Security
- Segundo
- Shady Camp
- Sheridan Lake
- Silver Cliff
- Simla
- Smeltertown
- Sopris
- South Fork
- Spar City
- Springfield
- Stanley
- Starkville
- Stonewall
- Stonington
- Stratmoor Hills
- Stratton
- Sugar City
- Summitville
- Swink
- Swissvale
- Tanglewood Acres
- Tarryall
- Tercio
- Texas Creek
- Thatcher
- Timber Lake
- Timpas
- Toltec
- Toonerville
- Torres Canon
- Towner
- Track City
- Trinchera
- Trinidad
- Truckton
- Turret
- Twin Lakes
- Twin Rock
- Two Buttes
- Tyrone
- U S A F Academy
- United States Air Force Acad
- Us Olympic Committee
- Usaf Academy
- Ute Pass
- Utleyville
- Victor
- Vigil
- Vilas
- Villa Grove
- Villegreen
- Vineland
- Vroman
- Wagon Wheel Gap
- Wahatoya
- Walsenburg
- Walsh
- Walter Drake
- Washington
- Waverly
- Wellsville
- West Farm
- Westcliffe
- Weston
- Westwood Lake
- Wetmore
- Widefield
- Wild Horse
- Wildhorse Mesa
- Wiley
- Williamsburg
- Woodland Park
- Woodmoor
- Yoder
Area code 720 is an overlay area code for area code 303.
- Akron
- Allison
- Almont
- Amherst
- Antlers
- Anton
- Appleton
- Arboles
- Arickaree
- Arriola
- Aspen
- Aspen-gerbaz
- Atwood
- Ault
- Austin
- Avon
- Axel
- Baldwin
- Basalt
- Battlement Mesa
- Bayfield
- Bear Mine
- Beaver Creek
- Bedrock
- Bellvue
- Berthoud
- Blue Mountain
- Bond
- Bowie
- Breckenridge
- Breen
- Briggsdale
- Browns Park
- Brush
- Buford
- Burns
- Cahone
- Capulin
- Carbondale
- Cardiff
- Carr
- Cedaredge
- Cement Creek
- Chimney Rock
- Chromo
- Cimarron
- Clark
- Clifton
- Coalby
- Coalmont
- Collbran
- College Heights
- Colona
- Colorado National Monument
- Colorado State University
- Cope
- Copper Mountain
- Cortez
- Cory
- Cowdrey
- Craig
- Crawford
- Crested Butte
- Crested Butte So
- Crook
- Crystal
- De Beque
- Delta
- Dillon
- Dinosaur
- Dolores
- Dotsero
- Dove Creek
- Doyleville
- Drake
- Dunton
- Durango
- Eagle
- East Orchard Mesa
- East Vail
- Eastman Kodak Co
- Eaton
- Eckert
- Eckley
- Edwards
- Egnar
- El Jebel
- Elk Springs
- Estes Park
- Evans
- Flagler
- Fleming
- Fort Collins
- Fort Morgan
- Fraser
- Frisco
- Fruita
- Fruitvale
- Ft Collins
- Galeton
- Garden City
- Gateway
- Gem Village
- Gilcrest
- Gill
- Gilman
- Glade Park
- Glen Haven
- Glenwood
- Glenwood Spgs
- Glenwood Springs
- Granby
- Grand Jct
- Grand Junction
- Grand Lake
- Grand Mesa
- Grand Valley
- Greeley
- Greystone
- Grover
- Gunnison
- Gypsum
- Hale
- Hamilton
- Haxtun
- Hayden
- Heeney
- Hereford
- Hermosa
- Hesperus
- Hillrose
- Holyoke
- Hot Sulphur Springs
- Hotchkiss
- Hovenweep National Monument
- Hoyt
- Idalia
- Ignacio
- Iliff
- Indian Agency
- Iola
- Jacks Cabin
- Joes
- Johnstown
- Julesburg
- Kersey
- Keystone
- Kirk
- Kline
- Kremmling
- La Salle
- Laird
- Lake City
- Laporte
- Lasauses
- Last Chance
- Lay
- Lazear
- Lewis
- Lindon
- Livermore
- Log Lane Village
- Loma
- Loveland
- Lucerne
- Mack
- Maher
- Mancos
- Marble
- Marvel
- Masonville
- Massadona
- Maybell
- Mc Coy
- Mead
- Meeker
- Meredith
- Meridian Lake
- Merino
- Mesa
- Mesa Verde National Park
- Milliken
- Minturn
- Molina
- Montezuma
- Montrose
- Mount Crested Butte
- Mountain Village
- Mt Crested Butte
- Nast
- Naturita
- Navajo State Park
- Nederland
- New Castle
- New Liberty
- New Raymer
- No Name
- Norrie
- Norwood
- Nucla
- Nunn
- Oak Creek
- Ohio City
- Olathe
- Old Snowmass
- Ophir
- Orchard
- Orchard City
- Otis
- Ouray
- Ovid
- Oxford
- Padroni
- Pagoda
- Pagosa Lakes
- Pagosa Spgs
- Pagosa Springs
- Palisade
- Pandora
- Paoli
- Paonia
- Parachute
- Paradox
- Parlin
- Parshall
- Peetz
- Phippsburg
- Piedra
- Piedre Park
- Pierce
- Pitkin
- Placerville
- Plateau City
- Platteville
- Pleasant View
- Powderhorn
- Purgatory
- Rainbow
- Rand
- Rangely
- Raymer
- Red Cliff
- Red Feather Lakes
- Red Mountain
- Redmesa
- Redstone
- Redvale
- Rico
- Ridgway
- Rifle
- Rio Blanco
- Riverbend
- Rocky Mountain National Park
- Rogers Mesa
- Ruedi
- Rulison
- Salida
- San Acacio
- Sanford
- Sapinero
- Sargents
- Sawpit
- Sedgwick
- Seibert
- Severance
- Silt
- Silver Creek
- Silvercreek
- Silverthorne
- Silverton
- Skyland
- Slater
- Slick Rock
- Snowmass
- Snowmass Village
- Snyder
- So Ute Indian Res
- Somerset
- Southern Ute Indian Reservat
- Spring Creek
- Squaw Point
- State Farm Ins
- Steamboat
- Steamboat Springs
- Sterling
- Stoneham
- Stoner
- Sweetwater
- Tabernash
- Tamarron
- Taylor Park
- Teledyne Water Pik
- Telluride
- Tiffany
- Timnath
- Tincup
- Toponas
- Towaoc
- Univ Of Northern Colorado
- Ute Mountain Indian Reservat
- Vail
- Vallecito
- Vernon
- Virginia Dale
- Vona
- Walden
- Weldona
- Wellington
- West Glenwood
- West Vail
- West Village
- Western State College
- White Pine
- Whitewater
- Wiggins
- Willard
- Windsor
- Windy Point
- Winter Park
- Wolcott
- Woodrow
- Woody Creek
- Wray
- Yampa
- Yellow Jacket
- Yuma
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