State
Area Code 720
Denver, Longmont, Fort Lupton, Colorado
Local time now
…
Time zone
Mountain
Main cities
Denver, Longmont, Fort Lupton, Georgetown, Keenesburg, Hudson
In service since
1998
When you can make sales calls to 720 numbers
| Every day | 8 AM – 9 PM (federal rule) |
In the called person's local time. Guidance, not legal advice.
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Other area codes in Colorado
Questions about area code 720
- Where is area code 720?
- Area code 720 is in Colorado, covering Denver, Longmont, Fort Lupton, Georgetown.
- What time zone is area code 720?
- Mountain time.
- When can telemarketers call a 720 number?
- Federal rules allow sales calls from 8 AM to 9 PM local time.
- Is 720 a toll-free number?
- No. 720 is a regular area code for Colorado. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.