Area Code Information
| Area Code: | 720 |
| State: | Colorado |
| Primary City: | Denver, Colorado |
| Time Zone: | Mountain |
Area code 720 serves the Denver, Colorado region in Colorado. This area code is in the Mountain time zone.
Browse Prefixes
Click on any prefix to browse phone numbers in that exchange:
720-200
720-201
720-202
720-203
720-204
720-205
720-206
720-207
720-208
720-209
720-210
720-211
720-212
720-213
720-214
720-215
720-216
720-217
720-218
720-219
720-220
720-221
720-222
720-223
720-224
720-225
720-226
720-227
720-228
720-229
Showing sample prefixes. All prefixes from 200-999 are available.