983 Area CodeDenver, CO
Area code 983 covers Denver and 136 other cities in Colorado: 3,380,487 people in 13 counties, led by Denver and Arapahoe, on Mountain Time (MT). It overlays 303 and 720.
Overview
- Major City
- Denver
- State
- Colorado (CO)
- Timezone
- Mountain Time (MT)
- Current Time
- –:––
- Overlay
- Yes – shares area with 303, 720
Where is area code 983?
Overview of the 983 Area Code
Geographic Coverage of the 983 Area Code
All 137 cities- 729,019
- 403,130
- 156,868
- 146,689
- 121,873
- 115,302
Denver Area Codes Overview
- 303Same territory
- 720Same territory
- 983This page
What cities does area code 983 cover?
| City | State | Population | Population in 983 | % of listed-city population | % of City |
|---|---|---|---|---|---|
| Denver | CO | 729,019 | 729,019 | 23.0% | 100.0% |
| Aurora | CO | 403,130 | 403,130 | 12.7% | 100.0% |
| Lakewood | CO | 156,868 | 156,868 | 5.0% | 100.0% |
| Thornton | CO | 146,689 | 146,689 | 4.6% | 100.0% |
| Arvada | CO | 121,873 | 121,873 | 3.8% | 100.0% |
| Westminster | CO | 115,302 | 115,302 | 3.6% | 100.0% |
| Centennial | CO | 108,853 | 108,853 | 3.4% | 100.0% |
| Boulder | CO | 106,803 | 106,803 | 3.4% | 100.0% |
| Longmont | CO | 99,818 | 99,818 | 3.2% | 100.0% |
| Highlands Ranch | CO | 96,713 | 96,713 | 3.1% | 100.0% |
| Castle Rock | CO | 83,213 | 83,213 | 2.6% | 100.0% |
| Broomfield | CO | 78,323 | 78,323 | 2.5% | 100.0% |
| Commerce City | CO | 70,245 | 70,245 | 2.2% | 100.0% |
| Parker | CO | 65,473 | 65,473 | 2.1% | 100.0% |
| Littleton | CO | 44,879 | 44,879 | 1.4% | 100.0% |
| Brighton | CO | 43,473 | 43,473 | 1.4% | 100.0% |
| Erie | CO | 38,594 | 38,594 | 1.2% | 100.0% |
| Northglenn | CO | 38,287 | 38,287 | 1.2% | 100.0% |
| Englewood | CO | 35,238 | 35,238 | 1.1% | 100.0% |
| Ken Caryl | CO | 32,438 | 32,438 | 1.0% | 100.0% |
| Dakota Ridge | CO | 32,005 | 32,005 | 1.0% | 100.0% |
| Wheat Ridge | CO | 31,999 | 31,999 | 1.0% | 100.0% |
| Lafayette | CO | 30,587 | 30,587 | 1.0% | 100.0% |
| Columbine | CO | 24,280 | 24,280 | 0.8% | 100.0% |
| Louisville | CO | 20,811 | 20,811 | 0.7% | 100.0% |
| Golden | CO | 20,151 | 20,151 | 0.6% | 100.0% |
| Firestone | CO | 19,396 | 19,396 | 0.6% | 100.0% |
| Sherrelwood | CO | 18,287 | 18,287 | 0.6% | 100.0% |
| Frederick | CO | 17,937 | 17,937 | 0.6% | 100.0% |
| Greenwood Village | CO | 15,288 | 15,288 | 0.5% | 100.0% |
| Castle Pines | CO | 15,162 | 15,162 | 0.5% | 100.0% |
| Welby | CO | 14,846 | 14,846 | 0.5% | 100.0% |
| Lone Tree | CO | 14,061 | 14,061 | 0.5% | 100.0% |
| Federal Heights | CO | 13,971 | 13,971 | 0.4% | 100.0% |
| Superior | CO | 13,654 | 13,654 | 0.4% | 100.0% |
| Berkley | CO | 11,207 | 11,207 | 0.4% | 100.0% |
| Cherry Creek | CO | 11,120 | 11,120 | 0.4% | 100.0% |
| The Pinery | CO | 10,517 | 10,517 | 0.3% | 100.0% |
| Castle Pines North | CO | 10,360 | 10,360 | 0.3% | 100.0% |
| Fort Lupton | CO | 9,948 | 9,948 | 0.3% | 100.0% |
| Gunbarrel | CO | 9,263 | 9,263 | 0.3% | 100.0% |
| Roxborough Park | CO | 9,099 | 9,099 | 0.3% | 100.0% |
| Evergreen | CO | 9,038 | 9,038 | 0.3% | 100.0% |
| Stonegate | CO | 8,962 | 8,962 | 0.3% | 100.0% |
| Lochbuie | CO | 8,599 | 8,599 | 0.3% | 100.0% |
| Derby | CO | 7,685 | 7,685 | 0.3% | 100.0% |
| Fairmount | CO | 7,559 | 7,559 | 0.2% | 100.0% |
| Applewood | CO | 7,160 | 7,160 | 0.2% | 100.0% |
| Dacono | CO | 6,748 | 6,748 | 0.2% | 100.0% |
| Mead | CO | 6,735 | 0 | 0.2% | 0.0% |
| Cherry Hills Village | CO | 6,349 | 6,349 | 0.2% | 100.0% |
| Twin Lakes | CO | 6,101 | 6,101 | 0.2% | 100.0% |
| Sheridan | CO | 5,932 | 5,932 | 0.2% | 100.0% |
| Dove Valley | CO | 5,243 | 5,243 | 0.2% | 100.0% |
| Shaw Heights | CO | 5,116 | 5,116 | 0.2% | 100.0% |
| Edgewater | CO | 4,880 | 4,880 | 0.2% | 100.0% |
| Glendale | CO | 4,465 | 4,465 | 0.1% | 100.0% |
| Glendale | CO | 4,465 | 4,465 | 0.1% | 100.0% |
| Niwot | CO | 4,006 | 4,006 | 0.1% | 100.0% |
| Bennett | CO | 3,916 | 3,916 | 0.1% | 100.0% |
| West Pleasant View | CO | 3,840 | 3,840 | 0.1% | 100.0% |
| Todd Creek | CO | 3,768 | 3,768 | 0.1% | 100.0% |
| Genesee | CO | 3,609 | 3,609 | 0.1% | 100.0% |
| Ponderosa Park | CO | 3,232 | 3,232 | 0.1% | 100.0% |
| Acres Green | CO | 3,007 | 3,007 | 0.1% | 100.0% |
| Meridian | CO | 2,970 | 2,970 | 0.1% | 100.0% |
| Elizabeth | CO | 2,773 | 2,773 | 0.1% | 100.0% |
| Holly Hills | CO | 2,521 | 2,521 | 0.1% | 100.0% |
| Strasburg | CO | 2,447 | 2,447 | 0.1% | 100.0% |
| Lyons | CO | 2,155 | 2,155 | 0.1% | 100.0% |
| Keenesburg | CO | 2,054 | 2,054 | 0.1% | 100.0% |
| Idaho Springs | CO | 1,699 | 1,699 | 0.1% | 100.0% |
| Columbine Valley | CO | 1,683 | 1,683 | 0.1% | 100.0% |
| Perry Park | CO | 1,646 | 1,646 | 0.1% | 100.0% |
| Deer Trail | CO | 1,624 | 1,624 | 0.1% | 100.0% |
| Hudson | CO | 1,617 | 1,617 | 0.1% | 100.0% |
| Inverness | CO | 1,532 | 1,532 | 0.1% | 100.0% |
| Nederland | CO | 1,487 | 1,487 | 0.1% | 100.0% |
| Aristocrat Ranchettes | CO | 1,344 | 1,344 | 0.1% | 100.0% |
| Kittredge | CO | 1,304 | 1,304 | 0.0% | 100.0% |
| Indian Hills | CO | 1,280 | 1,280 | 0.0% | 100.0% |
| Georgetown | CO | 1,257 | 1,257 | 0.0% | 100.0% |
| Byers | CO | 1,160 | 1,160 | 0.0% | 100.0% |
| Upper Bear Creek | CO | 1,059 | 1,059 | 0.0% | 100.0% |
| Floyd Hill | CO | 998 | 998 | 0.0% | 100.0% |
| Pine Brook Hill | CO | 983 | 983 | 0.0% | 100.0% |
| Paragon Estates | CO | 928 | 928 | 0.0% | 100.0% |
| Lazy Acres | CO | 920 | 920 | 0.0% | 100.0% |
| Aspen Park | CO | 882 | 882 | 0.0% | 100.0% |
| Aetna Estates | CO | 834 | 834 | 0.0% | 100.0% |
| Bow Mar | CO | 833 | 833 | 0.0% | 100.0% |
| Foxfield | CO | 744 | 744 | 0.0% | 100.0% |
| Kiowa | CO | 734 | 734 | 0.0% | 100.0% |
| Central City | CO | 663 | 663 | 0.0% | 100.0% |
| Watkins | CO | 653 | 653 | 0.0% | 100.0% |
| Downieville-Lawson-Dumont | CO | 594 | 594 | 0.0% | 100.0% |
| Eldorado Springs | CO | 585 | 585 | 0.0% | 100.0% |
| Grand View Estates | CO | 528 | 528 | 0.0% | 100.0% |
| Allenspark | CO | 528 | 528 | 0.0% | 100.0% |
| Mountain View | CO | 521 | 521 | 0.0% | 100.0% |
| Altona | CO | 501 | 501 | 0.0% | 100.0% |
| North Washington | CO | 484 | 484 | 0.0% | 100.0% |
| Franktown | CO | 395 | 395 | 0.0% | 100.0% |
| Morrison | CO | 394 | 394 | 0.0% | 100.0% |
| Comanche Creek | CO | 369 | 369 | 0.0% | 100.0% |
| Coal Creek | CO | 368 | 368 | 0.0% | 100.0% |
| East Pleasant View | CO | 356 | 356 | 0.0% | 100.0% |
| Empire | CO | 324 | 324 | 0.0% | 100.0% |
| St. Ann Highlands | CO | 288 | 288 | 0.0% | 100.0% |
| St. Mary's | CO | 283 | 283 | 0.0% | 100.0% |
| Mountain Meadows | CO | 274 | 274 | 0.0% | 100.0% |
| Louviers | CO | 269 | 269 | 0.0% | 100.0% |
| Sugarloaf | CO | 261 | 261 | 0.0% | 100.0% |
| Idledale | CO | 252 | 252 | 0.0% | 100.0% |
| Jamestown | CO | 246 | 246 | 0.0% | 100.0% |
| Gold Hill | CO | 230 | 230 | 0.0% | 100.0% |
| Sunshine | CO | 230 | 230 | 0.0% | 100.0% |
| Elbert | CO | 230 | 230 | 0.0% | 100.0% |
| Larkspur | CO | 223 | 223 | 0.0% | 100.0% |
| Bark Ranch | CO | 213 | 213 | 0.0% | 100.0% |
| Tall Timber | CO | 208 | 208 | 0.0% | 100.0% |
| Sedalia | CO | 206 | 206 | 0.0% | 100.0% |
| Silver Plume | CO | 188 | 188 | 0.0% | 100.0% |
| Crisman | CO | 186 | 186 | 0.0% | 100.0% |
| Rollinsville | CO | 181 | 181 | 0.0% | 100.0% |
| Peoria | CO | 163 | 163 | 0.0% | 100.0% |
| Eldora | CO | 142 | 142 | 0.0% | 100.0% |
| Westcreek | CO | 129 | 129 | 0.0% | 100.0% |
| Bonanza Mountain Estates | CO | 128 | 128 | 0.0% | 100.0% |
| Ward | CO | 127 | 127 | 0.0% | 100.0% |
| Seven Hills | CO | 121 | 121 | 0.0% | 100.0% |
| Black Hawk | CO | 120 | 120 | 0.0% | 100.0% |
| Brick Center | CO | 107 | 107 | 0.0% | 100.0% |
| Valmont | CO | 59 | 59 | 0.0% | 100.0% |
| Hidden Lake | CO | 31 | 31 | 0.0% | 100.0% |
| Leyner | CO | 29 | 29 | 0.0% | 100.0% |
| Lakeside | CO | 15 | 15 | 0.0% | 100.0% |
City population is shown in full; each city's share inside 983 is measured from Census tract centroids.
What counties does area code 983 cover?
| County | State | Population in 983 | % of area-code footprint | % of County |
|---|---|---|---|---|
| Denver County | CO | 715,522 | 21% | 100% |
| Arapahoe County | CO | 655,070 | 19% | 100% |
| Jefferson County | CO | 582,910 | 17% | 100% |
| Adams County | CO | 519,572 | 15% | 100% |
| Douglas County | CO | 357,978 | 11% | 100% |
| Boulder County | CO | 330,758 | 10% | 100% |
| Weld County | CO | 93,754 | 3% | 28% |
| Broomfield County | CO | 74,112 | 2% | 100% |
| Elbert County | CO | 24,043 | 1% | 92% |
| Park County | CO | 9,762 | 0% | 56% |
| Clear Creek County | CO | 9,397 | 0% | 100% |
| Gilpin County | CO | 5,808 | 0% | 100% |
| Larimer County | CO | 1,801 | 0% | 1% |
Sources:
- Census PEP Vintage 2024 (city populations)
- · 2020 Census tract centroids with NANP and TIGERweb boundaries (footprint, counties, city shares)
- · NANPA NPA and CO Code reports (dates, prefixes)
- · Methodology
Has area code 983 been reported for unwanted calls?
Yes – 851 FTC complaints, May 29 – Oct 1, 2026.
- 69% robocalls
- ↓ 41% vs prior period
- FTC data, retrieved 2026-10-05
Most-reported subjects
- Reducing your debt (credit cards, mortgage, student loans)43%362
- Other37%319
- Dropped call or no message6%55
Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints.
Which prefixes and exchanges belong to area code 983?
0% assigned to a telco
- 100% Landline
- 0% Wireless
- 0% Unknown
of 2 | ||
| Prefix | Usage | Carrier |
|---|---|---|
| (983)200- | Landline | Nuso |
| (983)983- | Landline | Onvoy Spectrum |
| No prefixes match “”. | ||
Frequently Asked Questions about the 983 Area Code
Who called me from a 983 number?
0% of its assigned prefixes are wireless. Largest holders: Nuso and Onvoy Spectrum.
Is 983 a scam area code?
Carriers hold 0% of its possible prefixes.
Why do I keep getting calls from the 983 area code?
Complaints fell 41% on the prior period.
Should I answer an unknown 983 number?
69% of its FTC complaints were robocalls. Its most-reported subject was "Reducing your debt (credit cards, mortgage, student loans)", at 43%.
Where is area code 983?
983 covers 137 cities and 3,380,487 residents in 13 Colorado counties, led by Denver, Arapahoe, and Jefferson.
When did area code 983 go into service?
983 went into service on June 17, 2022. It was added to overlay 303. 720 also shares its territory.
Is 983 a real area code?
Yes: 2 carriers hold its prefixes, serving 137 cities in Denver, Arapahoe, Jefferson, and 10 other counties.
What timezone is the 983 area code in?
983 is on Mountain Time (MT).
How do I call a 983 number from abroad?
Dial +1 983, then the number.