720 Area CodeDenver, CO
Area code 720 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 983.
Overview
- Major City
- Denver
- State
- Colorado (CO)
- Timezone
- Mountain Time (MT)
- Current Time
- –:––
- Overlay
- Yes – shares area with 303, 983
Where is area code 720?
Overview of the 720 Area Code
Geographic Coverage of the 720 Area Code
All 137 cities- 729,019
- 403,130
- 156,868
- 146,689
- 121,873
- 115,302
Denver Area Codes Overview
- 303Same territory
- 720This page
- 983Same territory
What cities does area code 720 cover?
| City | State | Population | Population in 720 | % 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 720 is measured from Census tract centroids.
What counties does area code 720 cover?
| County | State | Population in 720 | % 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 720 been reported for unwanted calls?
Yes – 3,433 FTC complaints, May 29 – Oct 1, 2026.
- 53% robocalls
- ↓ 1% vs prior period
- FTC data, retrieved 2026-10-05
Most-reported subjects
- Other42%1,440
- Reducing your debt (credit cards, mortgage, student loans)11%384
- Dropped call or no message10%335
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 720?
78% assigned to a telco
- 62% Landline
- 38% Wireless
- 0% Unknown
of 780 | ||
| Prefix | Usage | Carrier |
|---|---|---|
| (720)200- | Landline | Qwest |
| (720)201- | Wireless | New Cingular Wireless Pcs |
| (720)202- | Wireless | Verizon Wireless |
| (720)203- | Wireless | T-Mobile Usa |
| (720)204- | Landline | Level 3 Communications |
| (720)205- | Wireless | T-Mobile Usa |
| (720)206- | Landline | Xo Colorado |
| (720)207- | Landline | Xo Colorado |
| (720)208- | Landline | Xo Colorado |
| (720)209- | Wireless | T-Mobile Usa |
| (720)210- | Landline | Xo Colorado |
| (720)212- | Landline | Xo Colorado |
| (720)213- | Landline | Mcleodusa Telecommunication Services |
| (720)214- | Landline | Mcleodusa Telecommunication Services |
| (720)215- | Wireless | Verizon Wireless |
| (720)216- | Landline | Teleport Communications America |
| (720)217- | Wireless | T-Mobile Usa |
| (720)218- | Wireless | T-Mobile Usa |
| (720)219- | Wireless | Verizon Wireless |
| (720)220- | Wireless | T-Mobile Usa |
| (720)221- | Landline | Xo Colorado |
| (720)222- | Landline | Xo Colorado |
| (720)223- | Landline | Xo Colorado |
| (720)224- | Landline | Xo Colorado |
| (720)225- | Landline | Xo Colorado |
| (720)226- | Landline | Xo Colorado |
| (720)227- | Landline | Xo Colorado |
| (720)228- | Landline | Xo Colorado |
| (720)229- | Landline | Xo Colorado |
| (720)230- | Landline | Xo Colorado |
| (720)231- | Wireless | T-Mobile Usa |
| (720)232- | Wireless | T-Mobile Usa |
| (720)233- | Wireless | T-Mobile Usa |
| (720)234- | Wireless | T-Mobile Usa |
| (720)235- | Wireless | T-Mobile Usa |
| (720)236- | Wireless | T-Mobile Usa |
| (720)237- | Wireless | New Cingular Wireless Pcs |
| (720)238- | Wireless | T-Mobile Usa |
| (720)239- | Landline | At&T |
| (720)240- | Landline | Xo Colorado |
| (720)241- | Landline | Xo Colorado |
| (720)242- | Landline | Qwest |
| (720)243- | Wireless | New Cingular Wireless Pcs |
| (720)244- | Wireless | New Cingular Wireless Pcs |
| (720)245- | Landline | Allstream |
| (720)246- | Landline | Xo Colorado |
| (720)247- | Landline | Xo Colorado |
| (720)248- | Landline | Onvoy |
| (720)249- | Landline | Xo Colorado |
| (720)250- | Landline | Xo Colorado |
| (720)251- | Landline | Level 3 Communications |
| (720)252- | Wireless | T-Mobile Usa |
| (720)253- | Wireless | T-Mobile Usa |
| (720)254- | Wireless | T-Mobile Usa |
| (720)255- | Wireless | T-Mobile Usa |
| (720)256- | Wireless | T-Mobile Usa |
| (720)257- | Landline | Xo Colorado |
| (720)258- | Landline | Teleport Communications America |
| (720)259- | Landline | Level 3 Communications |
| (720)260- | Wireless | T-Mobile Usa |
| (720)261- | Wireless | T-Mobile Usa |
| (720)262- | Landline | Level 3 Communications |
| (720)263- | Landline | Level 3 Communications |
| (720)264- | Landline | Qwest |
| (720)265- | Landline | Xo Colorado |
| (720)266- | Landline | Level 3 Communications |
| (720)267- | Landline | Qwest |
| (720)268- | Landline | Qwest |
| (720)269- | Landline | Teleport Communications America |
| (720)270- | Wireless | T-Mobile Usa |
| (720)271- | Wireless | T-Mobile Usa |
| (720)272- | Wireless | New Cingular Wireless Pcs |
| (720)273- | Wireless | New Cingular Wireless Pcs |
| (720)274- | Landline | Mcleodusa Telecommunication Services |
| (720)275- | Wireless | New Cingular Wireless Pcs |
| (720)276- | Wireless | New Cingular Wireless Pcs |
| (720)277- | Landline | Level 3 Communications |
| (720)278- | Landline | Level 3 Telecom Of Colorado |
| (720)279- | Landline | Level 3 Telecom Of Colorado |
| (720)280- | Wireless | T-Mobile Usa |
| (720)281- | Wireless | Verizon Wireless |
| (720)282- | Landline | Level 3 Telecom Of Colorado |
| (720)283- | Landline | Qwest |
| (720)284- | Landline | Xo Colorado |
| (720)285- | Landline | Xo Colorado |
| (720)286- | Landline | Teleport Communications America |
| (720)287- | Landline | Comcast Ip Phone |
| (720)288- | Landline | Bandwidth.Com Clec |
| (720)289- | Wireless | New Cingular Wireless Pcs |
| (720)290- | Wireless | T-Mobile Usa |
| (720)291- | Wireless | T-Mobile Usa |
| (720)292- | Wireless | New Cingular Wireless Pcs |
| (720)293- | Landline | Xo Colorado |
| (720)294- | Landline | Xo Colorado |
| (720)295- | Landline | Bandwidth.Com Clec |
| (720)296- | Wireless | New Cingular Wireless Pcs |
| (720)297- | Wireless | New Cingular Wireless Pcs |
| (720)298- | Wireless | New Cingular Wireless Pcs |
| (720)299- | Wireless | T-Mobile Usa |
| (720)300- | Wireless | T-Mobile Usa |
| (720)301- | Wireless | T-Mobile Usa |
| (720)302- | Landline | Teleport Communications America |
| (720)304- | Landline | Qwest |
| (720)305- | Landline | Level 3 Telecom Of Colorado |
| (720)306- | Landline | Allstream |
| (720)307- | Landline | At&T |
| (720)308- | Wireless | New Cingular Wireless Pcs |
| (720)309- | Wireless | New Cingular Wireless Pcs |
| (720)310- | Landline | Teleport Communications America |
| (720)312- | Wireless | T-Mobile Usa |
| (720)313- | Wireless | T-Mobile Usa |
| (720)314- | Wireless | T-Mobile Usa |
| (720)315- | Landline | Onvoy |
| (720)316- | Landline | Bandwidth.Com Clec |
| (720)317- | Wireless | T-Mobile Usa |
| (720)318- | Wireless | T-Mobile Usa |
| (720)319- | Wireless | T-Mobile Usa |
| (720)320- | Wireless | New Cingular Wireless Pcs |
| (720)321- | Landline | Qwest |
| (720)322- | Landline | Qwest |
| (720)323- | Wireless | T-Mobile Usa |
| (720)324- | Landline | Comcast Ip Phone |
| (720)325- | Wireless | T-Mobile Usa |
| (720)326- | Wireless | New Cingular Wireless Pcs |
| (720)327- | Wireless | New Cingular Wireless Pcs |
| (720)328- | Landline | Comcast Ip Phone |
| (720)329- | Wireless | New Cingular Wireless Pcs |
| (720)330- | Landline | Level 3 Communications |
| (720)331- | Wireless | T-Mobile Usa |
| (720)332- | Landline | Mcimetro Access Transmission Services |
| (720)333- | Wireless | T-Mobile Usa |
| (720)334- | Wireless | T-Mobile Usa |
| (720)335- | Wireless | T-Mobile Usa |
| (720)336- | Landline | Bandwidth.Com Clec |
| (720)337- | Landline | Qwest |
| (720)338- | Wireless | New Cingular Wireless Pcs |
| (720)339- | Wireless | T-Mobile Usa |
| (720)340- | Wireless | Verizon Wireless |
| (720)341- | Wireless | T-Mobile Usa |
| (720)342- | Landline | Teleport Communications America |
| (720)343- | Landline | Level 3 Communications |
| (720)344- | Landline | Qwest |
| (720)345- | Landline | Zippytech Incorporated |
| (720)346- | Wireless | Verizon Wireless |
| (720)347- | Landline | Level 3 Telecom Of Colorado |
| (720)348- | Landline | Qwest |
| (720)349- | Landline | Teleport Communications America |
| (720)350- | Wireless | T-Mobile Usa |
| (720)351- | Wireless | T-Mobile Usa |
| (720)352- | Wireless | T-Mobile Usa |
| (720)353- | Wireless | T-Mobile Usa |
| (720)354- | Landline | Level 3 Telecom Of Colorado |
| (720)355- | Wireless | Verizon Wireless |
| (720)356- | Landline | At&T |
| (720)357- | Wireless | New Cingular Wireless Pcs |
| (720)358- | Landline | Mcimetro Access Transmission Services |
| (720)359- | Landline | Qwest |
| (720)360- | Wireless | New Cingular Wireless Pcs |
| (720)361- | Landline | Allstream |
| (720)362- | Landline | Qwest |
| (720)363- | Landline | Metropcs |
| (720)364- | Wireless | New Cingular Wireless Pcs |
| (720)365- | Wireless | New Cingular Wireless Pcs |
| (720)366- | Wireless | New Cingular Wireless Pcs |
| (720)367- | Landline | Xo Colorado |
| (720)368- | Landline | Xo Colorado |
| (720)369- | Wireless | New Cingular Wireless Pcs |
| (720)370- | Landline | Bandwidth.Com Clec |
| (720)371- | Wireless | T-Mobile Usa |
| (720)372- | Wireless | T-Mobile Usa |
| (720)373- | Wireless | T-Mobile Usa |
| (720)374- | Landline | Qwest |
| (720)375- | Wireless | Commnet Wireless |
| (720)376- | Landline | Allstream |
| (720)377- | Landline | Xo Colorado |
| (720)378- | Wireless | New Cingular Wireless Pcs |
| (720)379- | Landline | Level 3 Communications |
| (720)380- | Wireless | T-Mobile Usa |
| (720)381- | Landline | Comcast Ip Phone |
| (720)382- | Landline | Allstream |
| (720)383- | Wireless | Verizon Wireless |
| (720)384- | Landline | Xo Colorado |
| (720)385- | Landline | Xo Colorado |
| (720)386- | Landline | Bandwidth.Com Clec |
| (720)387- | Landline | Level 3 Telecom Of Colorado |
| (720)388- | Wireless | Verizon Wireless |
| (720)389- | Landline | Xo Colorado |
| (720)390- | Wireless | Verizon Wireless |
| (720)391- | Wireless | Verizon Wireless |
| (720)392- | Landline | Ymax Communications |
| (720)393- | Landline | Level 3 Telecom Of Colorado |
| (720)394- | Wireless | T-Mobile Usa |
| (720)395- | Landline | At&T |
| (720)396- | Landline | At&T |
| (720)397- | Landline | At&T |
| (720)398- | Wireless | New Cingular Wireless Pcs |
| (720)399- | Landline | Level 3 Communications |
| (720)400- | Wireless | T-Mobile Usa |
| (720)401- | Wireless | T-Mobile Usa |
| (720)402- | Landline | Allstream |
| (720)403- | Landline | Peerless Network Of Colorado |
| (720)404- | Wireless | New Cingular Wireless Pcs |
| (720)405- | Landline | Intrado Communications |
| (720)406- | Landline | Qwest |
| (720)407- | Landline | Onvoy |
| (720)408- | Landline | Bandwidth.Com Clec |
| (720)409- | Landline | Mcleodusa Telecommunication Services |
| (720)410- | Landline | Comcast Ip Phone |
| (720)412- | Wireless | New Cingular Wireless Pcs |
| (720)413- | Wireless | Verizon Wireless |
| (720)414- | Landline | Level 3 Communications |
| (720)415- | Wireless | Verizon Wireless |
| (720)416- | Landline | Metropcs |
| (720)417- | Landline | Allstream |
| (720)418- | Landline | Mcimetro Access Transmission Services |
| (720)419- | Wireless | T-Mobile Usa |
| (720)420- | Landline | Level 3 Communications |
| (720)421- | Wireless | T-Mobile Usa |
| (720)422- | Wireless | New Cingular Wireless Pcs |
| (720)423- | Landline | Qwest |
| (720)424- | Landline | Qwest |
| (720)425- | Wireless | Verizon Wireless |
| (720)426- | Landline | Qwest |
| (720)427- | Wireless | T-Mobile Usa |
| (720)428- | Landline | Onvoy |
| (720)429- | Wireless | New Cingular Wireless Pcs |
| (720)430- | Landline | At&T |
| (720)431- | Wireless | New Cingular Wireless Pcs |
| (720)432- | Landline | Bandwidth.Com Clec |
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| (720)434- | Wireless | New Cingular Wireless Pcs |
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| (720)437- | Wireless | Verizon Wireless |
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| (720)443- | Landline | Bandwidth.Com Clec |
| (720)444- | Landline | Qwest |
| (720)445- | Wireless | Verizon Wireless |
| (720)446- | Landline | Xo Colorado |
| (720)447- | Wireless | New Cingular Wireless Pcs |
| (720)448- | Wireless | New Cingular Wireless Pcs |
| (720)449- | Landline | Xo Colorado |
| (720)450- | Landline | Mcimetro Access Transmission Services |
| (720)451- | Wireless | T-Mobile Usa |
| (720)452- | Landline | Peerless Network Of Colorado |
| (720)453- | Wireless | T-Mobile Usa |
| (720)454- | Landline | Mcleodusa Telecommunication Services |
| (720)455- | Landline | Qwest |
| (720)456- | Landline | Level 3 Telecom Of Colorado |
| (720)457- | Landline | Level 3 Communications |
| (720)458- | Landline | Level 3 Telecom Of Colorado |
| (720)459- | Landline | Onvoy |
| (720)460- | Landline | Allstream |
| (720)461- | Landline | Metropcs |
| (720)462- | Landline | Mcimetro Access Transmission Services |
| (720)463- | Landline | Onvoy |
| (720)464- | Landline | Bandwidth.Com Clec |
| (720)465- | Wireless | New Cingular Wireless Pcs |
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| (720)467- | Wireless | Verizon Wireless |
| (720)468- | Landline | Level 3 Communications |
| (720)469- | Wireless | New Cingular Wireless Pcs |
| (720)470- | Wireless | Verizon Wireless |
| (720)471- | Wireless | Verizon Wireless |
| (720)472- | Landline | Teleport Communications America |
| (720)473- | Landline | Onvoy |
| (720)474- | Wireless | T-Mobile Usa |
| (720)475- | Landline | Teleport Communications America |
| (720)476- | Wireless | New Cingular Wireless Pcs |
| (720)477- | Landline | Onvoy |
| (720)478- | Landline | Level 3 Telecom Of Colorado |
| (720)479- | Landline | Teleport Communications America |
| (720)480- | Wireless | New Cingular Wireless Pcs |
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| (720)482- | Landline | Qwest |
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| (720)485- | Landline | Comcast Ip Phone |
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| (720)488- | Landline | Qwest |
| (720)489- | Landline | Qwest |
| (720)490- | Wireless | T-Mobile Usa |
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| (720)493- | Landline | Qwest |
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| (720)495- | Wireless | New Cingular Wireless Pcs |
| (720)496- | Landline | Level 3 Communications |
| (720)497- | Landline | Qwest |
| (720)498- | Wireless | Verizon Wireless |
| (720)499- | Wireless | T-Mobile Usa |
| (720)500- | Landline | Peerless Network Of Colorado |
| (720)501- | Landline | Metropcs |
| (720)502- | Landline | Comcast Ip Phone |
| (720)503- | Wireless | New Cingular Wireless Pcs |
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| (720)505- | Wireless | Verizon Wireless |
| (720)506- | Landline | Level 3 Communications |
| (720)507- | Landline | Bandwidth.Com Clec |
| (720)508- | Landline | Allstream |
| (720)509- | Landline | Xo Colorado |
| (720)510- | Landline | Comcast Ip Phone |
| (720)512- | Landline | Comcast Ip Phone |
| (720)513- | Landline | Onvoy |
| (720)514- | Landline | Teleport Communications America |
| (720)515- | Landline | Bandwidth.Com Clec |
| (720)516- | Landline | Qwest |
| (720)517- | Wireless | New Cingular Wireless Pcs |
| (720)518- | Landline | Allstream |
| (720)519- | Landline | Teleport Communications America |
| (720)520- | Landline | Onvoy Spectrum |
| (720)521- | Landline | American Messaging Services |
| (720)522- | Landline | Xo Colorado |
| (720)523- | Landline | Qwest |
| (720)524- | Landline | Qwest |
| (720)525- | Wireless | T-Mobile Usa |
| (720)526- | Wireless | New Cingular Wireless Pcs |
| (720)527- | Landline | Teliax |
| (720)528- | Landline | Qwest |
| (720)529- | Landline | Qwest |
| (720)530- | Wireless | New Cingular Wireless Pcs |
| (720)531- | Landline | Comcast Ip Phone |
| (720)532- | Landline | Teleport Communications America |
| (720)533- | Landline | Teleport Communications America |
| (720)534- | Landline | Vonage America |
| (720)535- | Landline | Teleport Communications America |
| (720)536- | Landline | Qwest |
| (720)537- | Landline | Fasttrack Communications |
| (720)538- | Wireless | Verizon Wireless |
| (720)539- | Wireless | New Cingular Wireless Pcs |
| (720)540- | Landline | Qwest |
| (720)541- | Wireless | Verizon Wireless |
| (720)542- | Landline | Qwest |
| (720)543- | Landline | Peerless Network Of Colorado |
| (720)544- | Landline | Qwest |
| (720)545- | Landline | Level 3 Communications |
| (720)546- | Wireless | T-Mobile Usa |
| (720)547- | Landline | Bandwidth.Com Clec |
| (720)548- | Landline | Global Crossing Local Services |
| (720)549- | Landline | Level 3 Communications |
| (720)550- | Landline | Mcleodusa Telecommunication Services |
| (720)551- | Wireless | New Cingular Wireless Pcs |
| (720)552- | Wireless | Verizon Wireless |
| (720)553- | Landline | Qwest |
| (720)554- | Landline | Qwest |
| (720)556- | Wireless | Verizon Wireless |
| (720)557- | Wireless | Verizon Wireless |
| (720)558- | Landline | Qwest |
| (720)559- | Landline | Teleport Communications America |
| (720)560- | Wireless | New Cingular Wireless Pcs |
| (720)561- | Landline | Qwest |
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| (720)567- | Landline | Level 3 Communications |
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| (720)569- | Wireless | New Cingular Wireless Pcs |
| (720)570- | Landline | Qwest |
| (720)571- | Landline | Onvoy |
| (720)572- | Landline | Teleport Communications America |
| (720)573- | Landline | Level 3 Telecom Of Colorado |
| (720)574- | Landline | Bandwidth.Com Clec |
| (720)575- | Landline | Onvoy |
| (720)576- | Wireless | Verizon Wireless |
| (720)577- | Landline | Level 3 Communications |
| (720)578- | Landline | Qwest |
| (720)579- | Landline | Xo Colorado |
| (720)580- | Landline | Bandwidth.Com Clec |
| (720)581- | Wireless | T-Mobile Usa |
| (720)582- | Wireless | Verizon Wireless |
| (720)583- | Landline | Onvoy |
| (720)584- | Wireless | Verizon Wireless |
| (720)585- | Wireless | Commnet Wireless |
| (720)586- | Landline | Metropcs |
| (720)587- | Landline | At&T |
| (720)588- | Landline | Nuso |
| (720)589- | Wireless | T-Mobile Usa |
| (720)590- | Landline | Onvoy |
| (720)591- | Wireless | Verizon Wireless |
| (720)592- | Wireless | T-Mobile Usa |
| (720)593- | Landline | Level 3 Telecom Of Colorado |
| (720)594- | Landline | Airus |
| (720)595- | Landline | Level 3 Communications |
| (720)596- | Landline | Teleport Communications America |
| (720)597- | Wireless | Verizon Wireless |
| (720)598- | Landline | Bandwidth.Com Clec |
| (720)599- | Landline | Allstream |
| (720)600- | Landline | Onvoy |
| (720)601- | Wireless | Verizon Wireless |
| (720)602- | Wireless | T-Mobile Usa |
| (720)603- | Landline | Level 3 Telecom Of Colorado |
| (720)604- | Landline | Bandwidth.Com Clec |
| (720)605- | Landline | Onvoy |
| (720)606- | Wireless | New Cingular Wireless Pcs |
| (720)607- | Wireless | Verizon Wireless |
| (720)608- | Landline | Bandwidth.Com Clec |
| (720)609- | Wireless | New Cingular Wireless Pcs |
| (720)610- | Wireless | Verizon Wireless |
| (720)612- | Wireless | T-Mobile Usa |
| (720)613- | Landline | Mcimetro Access Transmission Services |
| (720)614- | Landline | Airespring |
| (720)615- | Landline | Bandwidth.Com Clec |
| (720)616- | Landline | Level 3 Communications |
| (720)617- | Landline | Mcleodusa Telecommunication Services |
| (720)618- | Wireless | Verizon Wireless |
| (720)619- | Landline | Bandwidth.Com Clec |
| (720)620- | Wireless | New Cingular Wireless Pcs |
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| (720)622- | Landline | Qwest |
| (720)623- | Landline | Onvoy |
| (720)624- | Landline | Teleport Communications America |
| (720)625- | Landline | Mcleodusa Telecommunication Services |
| (720)626- | Wireless | Verizon Wireless |
| (720)627- | Landline | Qwest |
| (720)628- | Wireless | New Cingular Wireless Pcs |
| (720)629- | Wireless | New Cingular Wireless Pcs |
| (720)630- | Wireless | New Cingular Wireless Pcs |
| (720)631- | Landline | Mcimetro Access Transmission Services |
| (720)632- | Landline | Teleport Communications America |
| (720)633- | Wireless | New Cingular Wireless Pcs |
| (720)634- | Landline | Mcimetro Access Transmission Services |
| (720)635- | Wireless | New Cingular Wireless Pcs |
| (720)636- | Wireless | Verizon Wireless |
| (720)637- | Landline | Onvoy |
| (720)638- | Landline | Comcast Ip Phone |
| (720)639- | Landline | Onvoy |
| (720)640- | Landline | Level 3 Communications |
| (720)641- | Wireless | T-Mobile Usa |
| (720)642- | Wireless | Verizon Wireless |
| (720)643- | Landline | Level 3 Communications |
| (720)644- | Landline | Mcleodusa Telecommunication Services |
| (720)645- | Wireless | T-Mobile Usa |
| (720)646- | Wireless | New Cingular Wireless Pcs |
| (720)647- | Landline | Onvoy |
| (720)648- | Wireless | Verizon Wireless |
| (720)649- | Landline | Bandwidth.Com Clec |
| (720)650- | Landline | Onvoy |
| (720)651- | Wireless | Verizon Wireless |
| (720)652- | Landline | Qwest |
| (720)653- | Wireless | Verizon Wireless |
| (720)654- | Wireless | New Cingular Wireless Pcs |
| (720)655- | Wireless | T-Mobile Usa |
| (720)656- | Wireless | New Cingular Wireless Pcs |
| (720)657- | Landline | Bandwidth.Com Clec |
| (720)658- | Landline | Telstar Communications |
| (720)659- | Landline | Vonage America |
| (720)660- | Wireless | Verizon Wireless |
| (720)661- | Wireless | Verizon Wireless |
| (720)662- | Wireless | T-Mobile Usa |
| (720)663- | Landline | Bandwidth.Com Clec |
| (720)664- | Landline | Onvoy |
| (720)665- | Wireless | Verizon Wireless |
| (720)666- | Landline | Peerless Network Of Colorado |
| (720)667- | Landline | Comcast Ip Phone |
| (720)668- | Wireless | Verizon Wireless |
| (720)669- | Landline | Onvoy |
| (720)670- | Wireless | Verizon Wireless |
| (720)671- | Wireless | Verizon Wireless |
| (720)672- | Wireless | Verizon Wireless |
| (720)673- | Landline | Exiant Communications |
| (720)674- | Landline | Comcast Ip Phone |
| (720)675- | Wireless | New Cingular Wireless Pcs |
| (720)676- | Landline | Mcimetro Access Transmission Services |
| (720)677- | Landline | Onvoy |
| (720)678- | Wireless | Csc Wireless |
| (720)679- | Landline | Onvoy |
| (720)680- | Wireless | T-Mobile Usa |
| (720)681- | Wireless | T-Mobile Usa |
| (720)682- | Wireless | Verizon Wireless |
| (720)683- | Landline | Bandwidth.Com Clec |
| (720)684- | Landline | Level 3 Communications |
| (720)685- | Landline | Qwest |
| (720)686- | Landline | Xo Colorado |
| (720)687- | Wireless | T-Mobile Usa |
| (720)688- | Wireless | New Cingular Wireless Pcs |
| (720)689- | Landline | Bandwidth.Com Clec |
| (720)690- | Wireless | New Cingular Wireless Pcs |
| (720)691- | Wireless | T-Mobile Usa |
| (720)692- | Landline | Metropcs |
| (720)693- | Wireless | Verizon Wireless |
| (720)694- | Wireless | T-Mobile Usa |
| (720)695- | Landline | Mcimetro Access Transmission Services |
| (720)696- | Landline | Bandwidth.Com Clec |
| (720)697- | Landline | Centurylink Communications |
| (720)698- | Wireless | Verizon Wireless |
| (720)699- | Landline | Onvoy |
| (720)701- | Landline | Teleport Communications America |
| (720)702- | Landline | Onvoy |
| (720)703- | Landline | Nuso |
| (720)704- | Wireless | T-Mobile Usa |
| (720)705- | Wireless | New Cingular Wireless Pcs |
| (720)706- | Landline | Onvoy |
| (720)707- | Landline | Onvoy |
| (720)708- | Landline | Teliax |
| (720)709- | Landline | Mcleodusa Telecommunication Services |
| (720)710- | Landline | Onvoy |
| (720)712- | Landline | Bandwidth.Com Clec |
| (720)713- | Landline | Onvoy |
| (720)714- | Landline | Onvoy |
| (720)715- | Landline | Bandwidth.Com Clec |
| (720)716- | Landline | Level 3 Communications |
| (720)717- | Wireless | New Cingular Wireless Pcs |
| (720)718- | Landline | Qwest |
| (720)721- | Landline | The Voice Application Network |
| (720)722- | Landline | Centurylink Communications |
| (720)723- | Landline | Allstream |
| (720)724- | Landline | Allstream |
| (720)725- | Wireless | T-Mobile Usa |
| (720)726- | Landline | Comcast Ip Phone |
| (720)727- | Landline | Bandwidth.Com Clec |
| (720)728- | Landline | Level 3 Telecom Of Colorado |
| (720)729- | Landline | Bandwidth.Com Clec |
| (720)730- | Landline | Onvoy |
| (720)731- | Landline | Level 3 Communications |
| (720)732- | Wireless | T-Mobile Usa |
| (720)733- | Landline | Qwest |
| (720)734- | Wireless | Commnet Wireless |
| (720)735- | Landline | Onvoy |
| (720)736- | Landline | Onvoy |
| (720)737- | Wireless | Verizon Wireless |
| (720)738- | Landline | Onvoy |
| (720)739- | Landline | Bandwidth.Com Clec |
| (720)740- | Landline | Hd Carrier |
| (720)741- | Landline | Onvoy |
| (720)742- | Wireless | T-Mobile Usa |
| (720)743- | Landline | Bandwidth.Com Clec |
| (720)744- | Landline | Qwest |
| (720)745- | Landline | Level 3 Communications |
| (720)746- | Landline | Qwest |
| (720)747- | Landline | Qwest |
| (720)748- | Landline | Qwest |
| (720)749- | Landline | Peerless Network Of Colorado |
| (720)750- | Wireless | T-Mobile Usa |
| (720)751- | Wireless | T-Mobile Usa |
| (720)752- | Landline | Level 3 Communications |
| (720)753- | Wireless | New Cingular Wireless Pcs |
| (720)754- | Landline | Level 3 Telecom Of Colorado |
| (720)755- | Wireless | T-Mobile Usa |
| (720)756- | Wireless | T-Mobile Usa |
| (720)757- | Wireless | T-Mobile Usa |
| (720)758- | Landline | Centurylink Communications |
| (720)759- | Landline | Pacoptic Networks |
| (720)760- | Landline | Twilio International |
| (720)761- | Landline | Jive Communications |
| (720)762- | Wireless | Verizon Wireless |
| (720)763- | Wireless | New Cingular Wireless Pcs |
| (720)764- | Landline | Onvoy |
| (720)765- | Wireless | Verizon Wireless |
| (720)766- | Landline | Fractel |
| (720)767- | Wireless | T-Mobile Usa |
| (720)768- | Landline | Commio |
| (720)769- | Landline | Vonage America |
| (720)770- | Landline | Bandwidth.Com Clec |
| (720)771- | Wireless | T-Mobile Usa |
| (720)772- | Landline | Allstream |
| (720)773- | Landline | Mcimetro Access Transmission Services |
| (720)774- | Wireless | New Cingular Wireless Pcs |
| (720)775- | Wireless | New Cingular Wireless Pcs |
| (720)776- | Landline | Peerless Network Of Colorado |
| (720)777- | Landline | Qwest |
| (720)778- | Landline | Bandwidth.Com Clec |
| (720)779- | Landline | Bandwidth.Com Clec |
| (720)780- | Landline | Onvoy |
| (720)781- | Wireless | T-Mobile Usa |
| (720)782- | Landline | At&T |
| (720)783- | Landline | Onvoy |
| (720)784- | Landline | Onvoy |
| (720)785- | Landline | Teleport Communications America |
| (720)786- | Wireless | T-Mobile Usa |
| (720)787- | Landline | Pacoptic Networks |
| (720)788- | Wireless | Verizon Wireless |
| (720)789- | Landline | Level 3 Communications |
| (720)790- | Landline | Onvoy |
| (720)791- | Landline | Telnyx |
| (720)792- | Landline | Onvoy |
| (720)793- | Wireless | Verizon Wireless |
| (720)794- | Landline | Onvoy |
| (720)795- | Landline | Centurylink Communications |
| (720)796- | Landline | Nuso |
| (720)797- | Landline | Bandwidth.Com Clec |
| (720)798- | Landline | Bandwidth.Com Clec |
| (720)799- | Landline | Onvoy |
| (720)800- | Landline | Onvoy |
| (720)801- | Landline | Wide Voice |
| (720)802- | Landline | Onvoy |
| (720)803- | Wireless | T-Mobile Usa |
| (720)804- | Landline | Whitesky Communications |
| (720)805- | Landline | Voip Innovations |
| (720)806- | Landline | Peerless Network Of Colorado |
| (720)807- | Landline | Onvoy |
| (720)808- | Landline | Bandwidth.Com Clec |
| (720)809- | Landline | Metropcs |
| (720)810- | Wireless | Verizon Wireless |
| (720)812- | Wireless | Verizon Wireless |
| (720)813- | Landline | Ip Horizon |
| (720)814- | Wireless | Verizon Wireless |
| (720)815- | Landline | Comcast Ip Phone |
| (720)816- | Landline | Onvoy Spectrum |
| (720)817- | Landline | Comcast Ip Phone |
| (720)818- | Wireless | Verizon Wireless |
| (720)819- | Wireless | T-Mobile Usa |
| (720)820- | Landline | Wide Voice |
| (720)821- | Landline | Onvoy |
| (720)822- | Wireless | Verizon Wireless |
| (720)823- | Landline | Whitesky Communications |
| (720)824- | Landline | Vonage America |
| (720)825- | Landline | Wide Voice |
| (720)826- | Landline | Comcast Ip Phone |
| (720)827- | Wireless | T-Mobile Usa |
| (720)828- | Wireless | T-Mobile Usa |
| (720)829- | Landline | Metropcs |
| (720)830- | Landline | Hd Carrier |
| (720)831- | Landline | Teleport Communications America |
| (720)832- | Landline | Onvoy Spectrum |
| (720)833- | Landline | Qwest |
| (720)834- | Landline | Teleport Communications America |
| (720)835- | Wireless | New Cingular Wireless Pcs |
| (720)836- | Landline | Level 3 Communications |
| (720)837- | Wireless | T-Mobile Usa |
| (720)838- | Wireless | T-Mobile Usa |
| (720)839- | Wireless | T-Mobile Usa |
| (720)840- | Wireless | T-Mobile Usa |
| (720)841- | Wireless | T-Mobile Usa |
| (720)842- | Landline | Qwest |
| (720)843- | Landline | Onvoy Spectrum |
| (720)844- | Landline | Leap Telecom |
| (720)845- | Wireless | T-Mobile Usa |
| (720)846- | Wireless | Verizon Wireless |
| (720)847- | Landline | Qwest |
| (720)848- | Landline | Qwest |
| (720)849- | Wireless | T-Mobile Usa |
| (720)850- | Landline | Five9 |
| (720)851- | Landline | Qwest |
| (720)852- | Landline | Qwest |
| (720)853- | Landline | Bandwidth.Com Clec |
| (720)854- | Landline | Qwest |
| (720)855- | Landline | Qwest |
| (720)856- | Landline | Onvoy |
| (720)857- | Landline | Qwest |
| (720)858- | Landline | Qwest |
| (720)859- | Landline | Qwest |
| (720)860- | Landline | Onvoy Spectrum |
| (720)861- | Landline | Bandwidth.Com Clec |
| (720)862- | Landline | Xo Colorado |
| (720)863- | Landline | Xo Colorado |
| (720)864- | Landline | Qwest |
| (720)865- | Landline | Level 3 Communications |
| (720)866- | Landline | Terra Nova Telecom |
| (720)868- | Landline | Onvoy |
| (720)869- | Wireless | New Cingular Wireless Pcs |
| (720)870- | Landline | Qwest |
| (720)871- | Wireless | T-Mobile Usa |
| (720)872- | Landline | Qwest |
| (720)873- | Landline | Qwest |
| (720)874- | Landline | Qwest |
| (720)875- | Landline | Qwest |
| (720)876- | Landline | Qwest |
| (720)877- | Landline | Level 3 Communications |
| (720)878- | Wireless | New Cingular Wireless Pcs |
| (720)879- | Landline | Level 3 Communications |
| (720)880- | Wireless | Verizon Wireless |
| (720)881- | Landline | Bandwidth.Com Clec |
| (720)882- | Wireless | New Cingular Wireless Pcs |
| (720)883- | Landline | Level 3 Communications |
| (720)884- | Landline | Qwest |
| (720)885- | Wireless | New Cingular Wireless Pcs |
| (720)886- | Landline | Qwest |
| (720)887- | Landline | Qwest |
| (720)888- | Landline | Level 3 Communications |
| (720)889- | Landline | Xo Colorado |
| (720)890- | Landline | Qwest |
| (720)891- | Landline | Level 3 Communications |
| (720)892- | Landline | Bandwidth.Com Clec |
| (720)893- | Landline | Bandwidth.Com Clec |
| (720)894- | Landline | Bandwidth.Com Clec |
| (720)895- | Landline | Qwest |
| (720)896- | Wireless | T-Mobile Usa |
| (720)897- | Landline | Global Crossing Local Services |
| (720)898- | Landline | Qwest |
| (720)899- | Wireless | Verizon Wireless |
| (720)900- | Landline | Peerless Network Of Colorado |
| (720)901- | Landline | Telnyx |
| (720)902- | Wireless | Verizon Wireless |
| (720)903- | Landline | Global Crossing Local Services |
| (720)904- | Landline | Qwest |
| (720)905- | Landline | Five9 |
| (720)906- | Landline | Comcast Ip Phone |
| (720)907- | Landline | Global Crossing Local Services |
| (720)908- | Wireless | Verizon Wireless |
| (720)909- | Landline | Bandwidth.Com Clec |
| (720)910- | Wireless | Verizon Wireless |
| (720)912- | Landline | Onvoy |
| (720)913- | Landline | Level 3 Communications |
| (720)914- | Landline | Onvoy |
| (720)915- | Landline | Vonage America |
| (720)916- | Wireless | Verizon Wireless |
| (720)917- | Landline | Qwest |
| (720)918- | Landline | Vonage America |
| (720)919- | Wireless | T-Mobile Usa |
| (720)920- | Landline | Teleport Communications America |
| (720)921- | Landline | Level 3 Communications |
| (720)922- | Landline | Qwest |
| (720)923- | Landline | Advanced Telecom Solutions |
| (720)924- | Landline | Qwest |
| (720)925- | Landline | Comcast Ip Phone |
| (720)926- | Wireless | Verizon Wireless |
| (720)927- | Landline | Bandwidth.Com Clec |
| (720)928- | Landline | Bandwidth.Com Clec |
| (720)929- | Landline | Qwest |
| (720)930- | Landline | Rclec |
| (720)931- | Landline | Qwest |
| (720)932- | Landline | Qwest |
| (720)933- | Wireless | T-Mobile Usa |
| (720)934- | Wireless | T-Mobile Usa |
| (720)935- | Wireless | T-Mobile Usa |
| (720)936- | Wireless | T-Mobile Usa |
| (720)937- | Wireless | T-Mobile Usa |
| (720)938- | Wireless | T-Mobile Usa |
| (720)939- | Wireless | T-Mobile Usa |
| (720)940- | Wireless | T-Mobile Usa |
| (720)941- | Landline | Qwest |
| (720)942- | Landline | Qwest |
| (720)943- | Landline | Global Crossing Local Services |
| (720)944- | Landline | Qwest |
| (720)945- | Landline | Qwest |
| (720)946- | Landline | Qwest |
| (720)947- | Landline | Qwest |
| (720)948- | Wireless | Verizon Wireless |
| (720)949- | Landline | Teleport Communications America |
| (720)951- | Wireless | Verizon Wireless |
| (720)952- | Landline | Vonage America |
| (720)953- | Wireless | T-Mobile Usa |
| (720)954- | Wireless | Verizon Wireless |
| (720)955- | Wireless | Verizon Wireless |
| (720)956- | Landline | Qwest |
| (720)957- | Wireless | T-Mobile Usa |
| (720)960- | Wireless | New Cingular Wireless Pcs |
| (720)961- | Landline | Level 3 Communications |
| (720)962- | Landline | Qwest |
| (720)963- | Landline | Qwest |
| (720)964- | Wireless | T-Mobile Usa |
| (720)965- | Wireless | T-Mobile Usa |
| (720)966- | Wireless | New Cingular Wireless Pcs |
| (720)967- | Landline | Leap Telecom |
| (720)968- | Wireless | New Cingular Wireless Pcs |
| (720)969- | Wireless | New Cingular Wireless Pcs |
| (720)971- | Wireless | T-Mobile Usa |
| (720)972- | Landline | Qwest |
| (720)973- | Landline | Hadlo Technologies |
| (720)974- | Landline | Allstream |
| (720)975- | Landline | Allstream |
| (720)977- | Landline | Qwest |
| (720)978- | Landline | Nuso |
| (720)979- | Wireless | T-Mobile Usa |
| (720)980- | Wireless | T-Mobile Usa |
| (720)981- | Landline | Qwest |
| (720)982- | Wireless | T-Mobile Usa |
| (720)984- | Wireless | T-Mobile Usa |
| (720)985- | Wireless | T-Mobile Usa |
| (720)986- | Landline | Bandwidth.Com Clec |
| (720)987- | Wireless | T-Mobile Usa |
| (720)988- | Wireless | T-Mobile Usa |
| (720)989- | Wireless | T-Mobile Usa |
| (720)990- | Landline | Level 3 Telecom Of Colorado |
| (720)991- | Landline | Commio |
| (720)992- | Landline | Teleport Communications America |
| (720)993- | Wireless | New Cingular Wireless Pcs |
| (720)994- | Wireless | T-Mobile Usa |
| (720)995- | Landline | Eon Telecom |
| (720)996- | Landline | Commio |
| (720)997- | Landline | Comcast Ip Phone |
| (720)998- | Landline | Comcast Ip Phone |
| (720)999- | Wireless | T-Mobile Usa |
| No prefixes match “”. | ||
Frequently Asked Questions about the 720 Area Code
Who called me from a 720 number?
38% of its assigned prefixes are wireless. Largest holders: T-Mobile Usa, Qwest, and New Cingular Wireless Pcs.
Is 720 a scam area code?
Carriers hold 78% of its possible prefixes.
Why do I keep getting calls from the 720 area code?
Complaints fell 1% on the prior period.
Should I answer an unknown 720 number?
53% of its FTC complaints were robocalls. Its most-reported specific subject was "Reducing your debt (credit cards, mortgage, student loans)", at 11%.
Where is area code 720?
720 covers 137 cities and 3,380,487 residents in 13 Colorado counties, led by Denver, Arapahoe, and Jefferson.
When did area code 720 go into service?
720 went into service on June 1, 1998. It was added to overlay 303. 983 also shares its territory.
Is 720 a real area code?
Yes: 53 carriers hold its prefixes, serving 137 cities in Denver, Arapahoe, Jefferson, and 10 other counties.
What timezone is the 720 area code in?
720 is on Mountain Time (MT).
How do I call a 720 number from abroad?
Dial +1 720, then the number.