Area Code 720 is located in the state of Colorado.
The Colorado`s major city is Denver
The state of Colorado is in Mountain timezone.
More important cities in Colorado:
Arvada, CO; Aurora, CO; Boulder, CO; Brighton, CO; Broomfield, CO; Castle Rock, CO; Castlewood, CO; Columbine, CO; Commerce City, CO; Denver, CO; Englewood, CO; Highlands Ranch, CO; Ken Caryl, CO; Lafayette, CO; Lakewood, CO; Littleton, CO; Longmont, CO; Loveland, CO; Northglenn, CO; Parker, CO; Southglenn, CO; Thornton, CO; Westminster, CO; Wheat Ridge, CO;
Prefixes within the 720 Area Code what we have in our database.
| Prefix | Primary City | County | Usage |
| (720) 943 | Denver, CO | Jefferson | Landline |
| (720) 944 | Denver, CO | Denver | Landline |
| (720) 945 | Denver, CO | Denver | Landline |
| (720) 946 | Denver, CO | Denver | Landline |
| (720) 947 | Denver, CO | Denver | Landline |
| (720) 949 | Aurora, CO | Jefferson | Landline |
| (720) 951 | Aurora, CO | Arapahoe | Cell Number |
| (720) 956 | Denver, CO | Denver | Landline |
| (720) 961 | Denver, CO | Jefferson | Landline |
| (720) 962 | Denver, CO | Jefferson | Landline |
| (720) 963 | Denver, CO | Jefferson | Landline |
| (720) 971 | Denver, CO | Denver | Cell Number |
| (720) 972 | Denver, CO | Adams | Landline |
| (720) 974 | Denver, CO | Jefferson | Landline |
| (720) 975 | Aurora, CO | Arapahoe | Landline |
| (720) 977 | Denver, CO | Adams | Landline |
| (720) 979 | Denver, CO | Denver | Cell Number |
| (720) 980 | Denver, CO | Denver | Cell Number |
| (720) 981 | Denver, CO | Jefferson | Landline |
| (720) 982 | Denver, CO | Denver | Cell Number |
| (720) 984 | Denver, CO | Denver | Cell Number |
| (720) 985 | Denver, CO | Denver | Cell Number |
| (720) 987 | Denver, CO | Denver | Cell Number |
| (720) 988 | Denver, CO | Denver | Cell Number |
| (720) 989 | Denver, CO | Denver | Cell Number |
| (720) 998 | Aurora, CO | Not filled | Unknown |
We have 426 Prefixes in our database.