List of Colorado area codes
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{{Colorado area codes image map}}
The U.S. state of Colorado is divided into three numbering plan areas in the North American Numbering Plan, with a total of six area codes.
| class=wikitable
!Area code(s) | Numbering plan area |
| 303, 720, 983 † | Greater Denver Metropolitan Area |
| 719 | southeastern, east central, and south central Colorado |
| 970, 748 † | northern and western Colorado |
| colspan=2 | † overlay complex |
Area code 748 is scheduled to be added to numbering plan area 970 in 2025.
History
Area code 303 is one of the original North American area codes of 1947, and originally served the entire state of Colorado. It remained the state's sole area code for 40 years.
Colorado's growth in the second half of the 20th century, particularly in the Denver/Boulder area, created a shortage of numbering resources, so that relief planning was initiated in 1987. On March 5, 1988, southeastern Colorado, including Colorado Springs and Pueblo, was split from 303 and received area code 719.{{cite web
|url=https://www.nanpa.com/sites/default/files/planning_letters/IL-87-03-045.pdf
|title=Information Letter 87-03-045: Split of the 303 Numbering Plan Area (NPA)
|publisher=NANPA/Bellcore
|date=1987-03-27
|access-date=2025-05-06
}}
This was intended as a long-term solution, but within five years further demand for numbers and the proliferation of cell phones and pagers (especially in and around Denver) forced another split. The northeastern and western portions of area code 303, including Fort Collins, Grand Junction, Vail and Aspen, were separated on April 2, 1995, and became area code 970. This split reduced 303 to the Denver-Boulder area.{{cite web
|url=https://www.nanpa.com/sites/default/files/planning_letters/IL-94-09-012.pdf
|title=Information Letter 94/09-012: NANP-Split of 303 (Colorado) Numbering Plan Area (NPA)
|publisher=NANPA
|date=1994-09-21
|access-date=2025-05-06
}} With the 1995 split, 303 was the only Colorado area code that did not border another state.
Within two years, continued sharp growth in the Front Range made further relief necessary. The Front Range is home not only to most of Colorado's landlines, but also most of the state's cell phones, fax machines, and pagers. On September 1, 1998, area code 720 was instituted in the 303 service area to create an overlay.{{cite news |url=https://www.apnews.com/46e08b8b19a101176b4ccb7a17c98364 |title=10-Digit Dialing Hits Denver Area |author=MICHAEL LOVELL |date=August 31, 1998 |publisher=Reuters |access-date=2019-06-10}}
In 2020, the North American Numbering Plan Administrator estimated that the Denver metropolitan area would reach numbering exhaustion by 2023.{{citation |url=https://nationalnanpa.com/reports/2020-1_NPA_Exhaust_Projections_Final.pdf |title=2020-1 NRUF and NPA Exhaust Analysis |access-date=2021-05-09}} On May 21, 2021, the Colorado Public Utilities Commission approved an additional 983 area code for the all-services distributed overlay of NPA 303/720.{{cite web
|url=https://www.nanpa.com/sites/default/files/planning_letters/PL-563.pdf
|title=Planning Letter 563: NPA 983 and 303/720 All-Services Overlay (Colorado)
|publisher=NANPA
|date=2021-07-29
|access-date=2025-05-06
}}{{cite news |url=https://www.9news.com/article/life/style/colorado-guide/new-area-code-colorado/73-bf378809-ad9c-4d74-8876-22355667deca |title=Denver's new area code starts in 2022 |access-date=2021-05-27}} Area code 983 was activated on June 17, 2022. This addition resulted in 23.8 million numbers being assigned to an area of about 3.5 million people.{{Cite web|url=https://www.colorado-demographics.com/counties_by_population|title=Colorado Counties by Population}}
In 2023, the North American Numbering Plan Administrator estimated that area code 970 would reach exhaustion mitigation levels by 2026. On December 18, 2023, the Colorado Public Utilities Commission approved the addition of area code 748 for the all-services distributed overlay of NPA 970.{{cite news|url=https://www.cpr.org/2023/12/18/new-area-code-for-northern-and-western-colorado-2026/|title=A new area code is coming to northern and western Colorado in 2026|publisher=Colorado Public Radio|first=Paolo|last=Zialcita|date=December 18, 2023|access-date=May 6, 2025}} No central office codes in area code 748 will be allowed to be installed before complete exhaustion of area code 970.
Area code assignments by community
| class="wikitable sortable plainrowheaders" | |
| style="background:#BBFFBB;"| {{dagger|alt=County seat}} | County seat |
| style="background:#FFBBBB;"| {{hash-tag|alt=State capital}} | State capital |
| class="wikitable sortable plainrowheaders" |
| Community name || Area code(s) |
|---|
| scope=row|Acres Green
|align=center|303/720/983 |
| scope=row|Aetna Estates
|align=center|303/720/983 |
| scope=row|Aguilar
|align=center|719 |
| scope=row|Air Force Academy
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Akron{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Alamosa{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Alamosa East
|align=center|719 |
| scope=row|Allenspark
|align=center|303/720/983 |
| scope=row|Alma
|align=center|719 |
| scope=row|Alpine, Chaffee County
|align=center|719 |
| scope=row|Alpine, Rio Grande County
|align=center|719 |
| scope=row|Altona
|align=center|303/720/983 |
| scope=row|Amherst
|align=center|970/748 |
| scope=row|Antonito
|align=center|719 |
| scope=row|Applewood
|align=center|303/720/983 |
| scope=row|Arboles
|align=center|970/748 |
| scope=row|Aristocrat Ranchettes
|align=center|303/720/983 |
| scope=row|Arriba
|align=center|719 |
| scope=row|Arvada
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Aspen{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Aspen Park
|align=center|303/720/983 |
| scope=row|Atwood
|align=center|970/748 |
| scope=row|Ault
|align=center|970/748 |
| scope=row|Aurora
|align=center|303/720/983 |
| scope=row|Avon
|align=center|970/748 |
| scope=row|Avondale
|align=center|719 |
| scope=row|Bark Ranch
|align=center|303/720/983 |
| scope=row|Basalt
|align=center|970/748 |
| scope=row|Battlement Mesa
|align=center|970/748 |
| scope=row|Bayfield
|align=center|970/748 |
| scope=row|Bennett
|align=center|303/720/983 |
| scope=row|Berkley
|align=center|303/720/983 |
| scope=row|Berthoud
|align=center|970/748 |
| scope=row|Bethune
|align=center|719 |
| scope=row|Beulah
|align=center|719 |
| scope=row|Beulah Valley
|align=center|719 |
| scope=row|Black Forest
|align=center|719 |
| scope=row|Black Hawk
|align=center|303/720/983 |
| scope=row|Blanca
|align=center|719 |
| scope=row|Blende
|align=center|719 |
| scope=row|Blue River
|align=center|970/748 |
| scope=row|Blue Sky
|align=center|970/748 |
| scope=row|Bonanza
|align=center|719 |
| scope=row|Bonanza Mountain Estates
|align=center|303/720/983 |
| scope=row|Boone
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Boulder{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Bow Mar
|align=center|303/720/983 |
| scope=row|Brandon
|align=center|719 |
| scope=row|Branson
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Breckenridge{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Brick Center
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Brighton{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Brookside
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Broomfield{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Brush
|align=center|970/748 |
| scope=row|Buena Vista
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Burlington{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Byers
|align=center|303/720/983 |
| scope=row|Calhan
|align=center|719 |
| scope=row|Campo
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Cañon City{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Capulin
|align=center|719 |
| scope=row|Carbondale
|align=center|970/748 |
| scope=row|Carbonate
|align=center|970/748 |
| scope=row|Carr
|align=center|970/748 |
| scope=row|Cascade
|align=center|719 |
| scope=row|Castle Pines
|align=center|303/720/983 |
| scope=row|Castle Pines Village
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Castle Rock{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Cathedral
|align=center|970/748 |
| scope=row|Catherine
|align=center|970/748 |
| scope=row|Cattle Creek
|align=center|970/748 |
| scope=row|Cedaredge
|align=center|970/748 |
| scope=row|Centennial
|align=center|303/720/983 |
| scope=row|Center
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Central City{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Chacra
|align=center|970/748 |
| scope=row|Cheraw
|align=center|719 |
| scope=row|Cherry Creek
|align=center|303/720/983 |
| scope=row|Cherry Hills Village
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Cheyenne Wells{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Chipita Park
|align=center|719 |
| scope=row|Cimarron Hills
|align=center|719 |
| scope=row|Clifton
|align=center|970/748 |
| scope=row|Coal Creek, Fremont County
|align=center|719 |
| scope=row|Coal Creek, Jefferson County
|align=center|303/720/983 |
| scope=row|Coaldale
|align=center|719 |
| scope=row|Cokedale
|align=center|719 |
| scope=row|Collbran
|align=center|970/748 |
| scope=row|Colona
|align=center|970/748 |
| scope=row|Colorado City
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Colorado Springs{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Columbine
|align=center|303/720/983 |
| scope=row|Columbine Valley
|align=center|303/720/983 |
| scope=row|Comanche Creek
|align=center|303/720/983 |
| scope=row|Commerce City
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Conejos{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Copper Mountain
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Cortez{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Cotopaxi
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Craig{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Crawford
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Creede{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Crested Butte
|align=center|970/748 |
| scope=row|Crestone
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Cripple Creek{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Crisman
|align=center|303/720/983 |
| scope=row|Crook
|align=center|970/748 |
| scope=row|Crowley
|align=center|719 |
| scope=row|Dacono
|align=center|303/720/983 |
| scope=row|Dakota Ridge
|align=center|303/720/983 |
| scope=row|De Beque
|align=center|970/748 |
| scope=row|Deer Trail
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Del Norte{{dagger|alt=County seat}}
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Delta{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row style="background:#FFBBBB;"|Denver {{hash-tag|alt=State capital}}
|align=center|303/720/983 |
| scope=row|Derby
|align=center|303/720/983 |
| scope=row|Dillon
|align=center|970/748 |
| scope=row|Dinosaur
|align=center|970/748 |
| scope=row|Divide
|align=center|719 |
| scope=row|Dolores
|align=center|970/748 |
| scope=row|Dotsero
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Dove Creek{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Dove Valley
|align=center|303/720/983 |
| scope=row|Downieville
|align=center|303/720/983 |
| scope=row|Dumont
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Durango{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Eads{{dagger|alt=County seat}}
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Eagle{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|East Pleasant View
|align=center|303/720/983 |
| scope=row|Eaton
|align=center|970/748 |
| scope=row|Eckley
|align=center|970/748 |
| scope=row|Edgewater
|align=center|303/720/983 |
| scope=row|Edwards
|align=center|970/748 |
| scope=row|El Jebel
|align=center|970/748 |
| scope=row|El Moro
|align=center|719 |
| scope=row|Elbert
|align=center|303/720/983 |
| scope=row|Eldora
|align=center|303/720/983 |
| scope=row|Eldorado Springs
|align=center|303/720/983 |
| scope=row|Elizabeth
|align=center|303/720/983 |
| scope=row|Ellicott
|align=center|719 |
| scope=row|Empire
|align=center|303/720/983 |
| scope=row|Englewood
|align=center|303/720/983 |
| scope=row|Erie
|align=center|303/720/983 |
| scope=row|Estes Park
|align=center|970/748 |
| scope=row|Evans
|align=center|970/748 |
| scope=row|Evergreen
|align=center|303/720/983 |
| scope=row|Fairmount
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Fairplay{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Federal Heights
|align=center|303/720/983 |
| scope=row|Firestone
|align=center|303/720/983 |
| scope=row|Flagler
|align=center|719 |
| scope=row|Fleming
|align=center|970/748 |
| scope=row|Florence
|align=center|719 |
| scope=row|Florissant
|align=center|719 |
| scope=row|Floyd Hill
|align=center|303/720/983 |
| scope=row|Fort Carson
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Fort Collins{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Fort Garland
|align=center|719 |
| scope=row|Fort Lupton
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Fort Morgan{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Fountain
|align=center|719 |
| scope=row|Fowler
|align=center|719 |
| scope=row|Foxfield
|align=center|303/720/983 |
| scope=row|Franktown
|align=center|303/720/983 |
| scope=row|Fraser
|align=center|970/748 |
| scope=row|Frederick
|align=center|303/720/983 |
| scope=row|Frisco
|align=center|970/748 |
| scope=row|Fruita
|align=center|970/748 |
| scope=row|Fruitvale
|align=center|970/748 |
| scope=row|Fulford
|align=center|970/748 |
| scope=row|Garden City
|align=center|970/748 |
| scope=row|Garfield
|align=center|719 |
| scope=row|Genesee
|align=center|303/720/983 |
| scope=row|Genoa
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Georgetown{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Gerrard
|align=center|719 |
| scope=row|Gilcrest
|align=center|970/748 |
| scope=row|Glendale, Arapahoe County
|align=center|303/720/983 |
| scope=row|Glendale, Boulder County
|align=center|303/720/983 |
| scope=row|Gleneagle
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Glenwood Springs{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Gold Hill
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Golden{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Goldfield
|align=center|719 |
| scope=row|Granada
|align=center|719 |
| scope=row|Granby
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Grand Junction{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Grand Lake
|align=center|970/748 |
| scope=row|Grand View Estates
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Greeley{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Green Mountain Falls
|align=center|719 |
| scope=row|Greenwood Village
|align=center|303/720/983 |
| scope=row|Grover
|align=center|970/748 |
| scope=row|Guffey
|align=center|719 |
| scope=row|Gunbarrel
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Gunnison{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Gypsum
|align=center|970/748 |
| scope=row|Hartman
|align=center|719 |
| scope=row|Hasty
|align=center|719 |
| scope=row|Haswell
|align=center|719 |
| scope=row|Haxtun
|align=center|970/748 |
| scope=row|Hayden
|align=center|970/748 |
| scope=row|Heeney
|align=center|970/748 |
| scope=row|Hidden Lake
|align=center|303/720/983 |
| scope=row|Highlands Ranch
|align=center|303/720/983 |
| scope=row|Hillrose
|align=center|970/748 |
| scope=row|Hoehne
|align=center|719 |
| scope=row|Holly
|align=center|719 |
| scope=row|Holly Hills
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Holyoke{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Hooper
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Hot Sulphur Springs{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Hotchkiss
|align=center|970/748 |
| scope=row|Howard
|align=center|719 |
| scope=row|Hudson
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Hugo{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Idaho Springs
|align=center|303/720/983 |
| scope=row|Idalia
|align=center|970/748 |
| scope=row|Idledale
|align=center|303/720/983 |
| scope=row|Ignacio
|align=center|970/748 |
| scope=row|Iliff
|align=center|970/748 |
| scope=row|Indian Hills
|align=center|303/720/983 |
| scope=row|Inverness
|align=center|303/720/983 |
| scope=row|Jackson Lake
|align=center|970/748 |
| scope=row|Jamestown
|align=center|303/720/983 |
| scope=row|Jansen
|align=center|719 |
| scope=row|Joes
|align=center|970/748 |
| scope=row|Johnson Village
|align=center|719 |
| scope=row|Johnstown
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Julesburg{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Keenesburg
|align=center|303/720/983 |
| scope=row|Ken Caryl
|align=center|303/720/983 |
| scope=row|Kersey
|align=center|970/748 |
| scope=row|Keystone
|align=center|970/748 |
| scope=row|Kim
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Kiowa{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Kirk
|align=center|970/748 |
| scope=row|Kit Carson
|align=center|719 |
| scope=row|Kittredge
|align=center|303/720/983 |
| scope=row|Kremmling
|align=center|970/748 |
| scope=row|La Jara
|align=center|719 |
| scope=row style="background:#BBFFBB;"|La Junta{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|La Junta Gardens
|align=center|719 |
| scope=row|La Salle
|align=center|970/748 |
| scope=row|La Veta
|align=center|719 |
| scope=row|Lafayette
|align=center|303/720/983 |
| scope=row|Laird
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Lake City{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Lakeside
|align=center|303/720/983 |
| scope=row|Lakewood
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Lamar{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Laporte
|align=center|970/748 |
| scope=row|Larkspur
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Las Animas{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|LaSalle
|align=center|970/748 |
| scope=row|Lawson
|align=center|303/720/983 |
| scope=row|Lazy Acres
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Leadville{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Leadville North
|align=center|719 |
| scope=row|Lewis
|align=center|970/748 |
| scope=row|Leyner
|align=center|303/720/983 |
| scope=row|Limon
|align=center|719 |
| scope=row|Lincoln Park
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Littleton{{dagger|alt=County seat}}
|align=center|303/720/983 |
| scope=row|Lochbuie
|align=center|303/720/983 |
| scope=row|Log Lane Village
|align=center|970/748 |
| scope=row|Loghill Village
|align=center|970/748 |
| scope=row|Loma
|align=center|970/748 |
| scope=row|Lone Tree
|align=center|303/720/983 |
| scope=row|Longmont
|align=center|303/720/983 |
| scope=row|Louisville
|align=center|303/720/983 |
| scope=row|Louviers
|align=center|303/720/983 |
| scope=row|Loveland
|align=center|970/748 |
| scope=row|Lynn
|align=center|719 |
| scope=row|Lyons
|align=center|303/720/983 |
| scope=row|Manassa
|align=center|719 |
| scope=row|Mancos
|align=center|970/748 |
| scope=row|Manitou Springs
|align=center|719 |
| scope=row|Manzanola
|align=center|719 |
| scope=row|Marble
|align=center|970/748 |
| scope=row|Maybell
|align=center|970/748 |
| scope=row|Maysville
|align=center|719 |
| scope=row|McCoy
|align=center|970/748 |
| scope=row|Mead
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Meeker{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Meridian
|align=center|303/720/983 |
| scope=row|Merino
|align=center|970/748 |
| scope=row|Midland
|align=center|719 |
| scope=row|Milliken
|align=center|970/748 |
| scope=row|Minturn
|align=center|970/748 |
| scope=row|Moffat
|align=center|719 |
| scope=row|Monte Vista
|align=center|719 |
| scope=row|Montezuma
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Montrose{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Monument
|align=center|719 |
| scope=row|Morgan Heights
|align=center|970/748 |
| scope=row|Morrison
|align=center|303/720/983 |
| scope=row|Mount Crested Butte
|align=center|970/748 |
| scope=row|Mountain Meadows
|align=center|303/720/983 |
| scope=row|Mountain View
|align=center|303/720/983 |
| scope=row|Mountain Village
|align=center|970/748 |
| scope=row|Mulford
|align=center|970/748 |
| scope=row|Naturita
|align=center|970/748 |
| scope=row|Nederland
|align=center|303/720/983 |
| scope=row|New Castle
|align=center|970/748 |
| scope=row|New Raymer
|align=center|970/748 |
| scope=row|Niwot
|align=center|303/720/983 |
| scope=row|No Name
|align=center|970/748 |
| scope=row|Norrie
|align=center|970/748 |
| scope=row|North La Junta
|align=center|719 |
| scope=row|North Washington
|align=center|303/720/983 |
| scope=row|Northglenn
|align=center|303/720/983 |
| scope=row|Norwood
|align=center|970/748 |
| scope=row|Nucla
|align=center|970/748 |
| scope=row|Nunn
|align=center|970/748 |
| scope=row|Oak Creek
|align=center|970/748 |
| scope=row|Olathe
|align=center|970/748 |
| scope=row|Olney Springs
|align=center|719 |
| scope=row|Ophir
|align=center|970/748 |
| scope=row|Orchard
|align=center|970/748 |
| scope=row|Orchard City
|align=center|970/748 |
| scope=row|Orchard Mesa
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Ordway{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Otis
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Ouray{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Ovid
|align=center|970/748 |
| scope=row|Padroni
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Pagosa Springs{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Palisade
|align=center|970/748 |
| scope=row|Palmer Lake
|align=center|719 |
| scope=row|Paoli
|align=center|970/748 |
| scope=row|Paonia
|align=center|970/748 |
| scope=row|Parachute
|align=center|970/748 |
| scope=row|Paragon Estates
|align=center|303/720/983 |
| scope=row|Parker
|align=center|303/720/983 |
| scope=row|Parshall
|align=center|970/748 |
| scope=row|Peetz
|align=center|970/748 |
| scope=row|Penrose
|align=center|719 |
| scope=row|Peoria
|align=center|303/720/983 |
| scope=row|Perry Park
|align=center|303/720/983 |
| scope=row|Peyton
|align=center|719 |
| scope=row|Phippsburg
|align=center|970/748 |
| scope=row|Piedra
|align=center|970/748 |
| scope=row|Pierce
|align=center|970/748 |
| scope=row|Pine Brook Hill
|align=center|303/720/983 |
| scope=row|Pitkin
|align=center|970/748 |
| scope=row|Platteville
|align=center|970/748 |
| scope=row|Poncha Springs
|align=center|719 |
| scope=row|Ponderosa Park
|align=center|303/720/983 |
| scope=row|Portland
|align=center|970/748 |
| scope=row|Pritchett
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Pueblo{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Pueblo West
|align=center|719 |
| scope=row|Ramah
|align=center|719 |
| scope=row|Rangely
|align=center|970/748 |
| scope=row|Raymer
|align=center|970/748 |
| scope=row|Red Cliff
|align=center|970/748 |
| scope=row|Red Feather Lakes
|align=center|970/748 |
| scope=row|Redlands
|align=center|970/748 |
| scope=row|Redstone
|align=center|970/748 |
| scope=row|Redvale
|align=center|970/748 |
| scope=row|Rico
|align=center|970/748 |
| scope=row|Ridgway
|align=center|970/748 |
| scope=row|Rifle
|align=center|970/748 |
| scope=row|Rock Creek Park
|align=center|719 |
| scope=row|Rockvale
|align=center|719 |
| scope=row|Rocky Ford
|align=center|719 |
| scope=row|Rollinsville
|align=center|303/720/983 |
| scope=row|Romeo
|align=center|719 |
| scope=row|Roxborough Park
|align=center|303/720/983 |
| scope=row|Rye
|align=center|719 |
| scope=row|Saddle Ridge
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Saguache{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Saint Ann Highlands
|align=center|303/720/983 |
| scope=row|Saint Mary's
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Salida{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Salt Creek
|align=center|719 |
| scope=row|San Acacio
|align=center|719 |
| scope=row style="background:#BBFFBB;"|San Luis{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Sanford
|align=center|719 |
| scope=row|Sawpit
|align=center|970/748 |
| scope=row|Security
|align=center|719 |
| scope=row|Sedalia
|align=center|303/720/983 |
| scope=row|Sedgwick
|align=center|970/748 |
| scope=row|Segundo
|align=center|719 |
| scope=row|Seibert
|align=center|970/748 |
| scope=row|Seven Hills
|align=center|303/720/983 |
| scope=row|Severance
|align=center|970/748 |
| scope=row|Shaw Heights
|align=center|303/720/983 |
| scope=row|Sheridan
|align=center|303/720/983 |
| scope=row|Sheridan Lake
|align=center|719 |
| scope=row|Sherrelwood
|align=center|303/720/983 |
| scope=row|Silt
|align=center|970/748 |
| scope=row|Silver Cliff
|align=center|719 |
| scope=row|Silver Plume
|align=center|303/720/983 |
| scope=row|Silverthorne
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Silverton{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Simla
|align=center|719 |
| scope=row|Smeltertown
|align=center|719 |
| scope=row|Snowmass
|align=center|970/748 |
| scope=row|Snowmass Village
|align=center|970/748 |
| scope=row|Snyder
|align=center|970/748 |
| scope=row|South Fork
|align=center|719 |
| scope=row|Southern Ute
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Springfield{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|St. Ann Highlands
|align=center|303/720/983 |
| scope=row|St. Mary's
|align=center|303/720/983 |
| scope=row|Starkville
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Steamboat Springs{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Sterling{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Stonegate
|align=center|303/720/983 |
| scope=row|Stonewall Gap
|align=center|719 |
| scope=row|Strasburg
|align=center|303/720/983 |
| scope=row|Stratmoor
|align=center|719 |
| scope=row|Stratton
|align=center|719 |
| scope=row|Sugar City
|align=center|719 |
| scope=row|Sugarloaf
|align=center|303/720/983 |
| scope=row|Sunshine
|align=center|303/720/983 |
| scope=row|Superior
|align=center|303/720/983 |
| scope=row|Swink
|align=center|719 |
| scope=row|Tabernash
|align=center|970/748 |
| scope=row|Tall Timber
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Telluride{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|The Pinery
|align=center|303/720/983 |
| scope=row|Thornton
|align=center|303/720/983 |
| scope=row|Timnath
|align=center|970/748 |
| scope=row|Todd Creek
|align=center|303/720/983 |
| scope=row|Towaoc
|align=center|970/748 |
| scope=row|Towner
|align=center|719 |
| scope=row|Trail Side
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Trinidad{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Twin Lakes, Adams County
|align=center|303/720/983 |
| scope=row|Twin Lakes, Lake County
|align=center|719 |
| scope=row|Two Buttes
|align=center|719 |
| scope=row|Upper Bear Creek
|align=center|303/720/983 |
| scope=row|Vail
|align=center|970/748 |
| scope=row|Valdez
|align=center|719 |
| scope=row|Valmont
|align=center|303/720/983 |
| scope=row|Vernon
|align=center|970/748 |
| scope=row|Victor
|align=center|719 |
| scope=row|Vilas
|align=center|719 |
| scope=row|Vineland
|align=center|719 |
| scope=row|Vona
|align=center|719 |
| scope=row style="background:#BBFFBB;"|Walden{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Walsenburg{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Walsh
|align=center|719 |
| scope=row|Ward
|align=center|303/720/983 |
| scope=row|Watkins
|align=center|303/720/983 |
| scope=row|Welby
|align=center|303/720/983 |
| scope=row|Weldona
|align=center|970/748 |
| scope=row|Wellington
|align=center|970/748 |
| scope=row|West Pleasant View
|align=center|303/720/983 |
| scope=row style="background:#BBFFBB;"|Westcliffe{{dagger|alt=County seat}}
|align=center|719 |
| scope=row|Westcreek
|align=center|303/720/983 |
| scope=row|Westminster
|align=center|303/720/983 |
| scope=row|Weston
|align=center|719 |
| scope=row|Wheat Ridge
|align=center|303/720/983 |
| scope=row|Widefield
|align=center|719 |
| scope=row|Wiggins
|align=center|970/748 |
| scope=row|Wiley
|align=center|719 |
| scope=row|Williamsburg
|align=center|719 |
| scope=row|Windsor
|align=center|970/748 |
| scope=row|Winter Park
|align=center|970/748 |
| scope=row|Wolcott
|align=center|970/748 |
| scope=row|Woodland Park
|align=center|719 |
| scope=row|Woodmoor
|align=center|719 |
| scope=row|Woody Creek
|align=center|970/748 |
| scope=row style="background:#BBFFBB;"|Wray{{dagger|alt=County seat}}
|align=center|970/748 |
| scope=row|Yampa
|align=center|970/748 |
| scope=row|Yuma
|align=center|970/748 |
See also
{{portal|Telecommunications|Geography|United States|Colorado}}
- Geography of Colorado
- List of Colorado-related lists
- List of populated places in Colorado
- List of ZIP codes in Colorado
- List of North American Numbering Plan area codes
{{clear}}
References
{{reflist}}
External links
{{sister project links|Colorado|auto=yes}}
{{Area code list}}
{{Colorado}}
{{authority control}}
{{coord|38.9972|-105.5478|dim:300000_region:US-CO_type:adm1st|name=State of Colorado|display=title}}
{{DEFAULTSORT:Telephone area codes in Colorado, List of}}
Category:Communications in Colorado