Mobile phone showing a phone call being received on Dialpad's app
Get a local business presence in Denver, CO

Area code 720

Using the 720 area code will help you connect more easily with customers in Denver, Colorado, and you can get a free phone number with Dialpad’s AI-powered collaboration platform. Try Dialpad for free to get set up with a local 720 area code number!

Local phone numbers for area code 720: Perfect for sales and customer teams

Adding a new area code can be helpful, but instead of just buying phone numbers separately, why not get them as part of your business phone system or collaboration platform?

How it works

Dialpad’s plans all come with a free local phone number—in this case a number with your local 720 area code—as well as unlimited calling in the US and Canada. And prices start at just $15/user/month!

That means you get unified communications features like phone calls, video conferencing, SMS/MMS messaging and team messages, and more—all from one intuitive, easy-to-use desktop or mobile app:

Screenshot of a video conference happening in Dialpad's desktop app

Next, let’s quickly recap the geographical area this area code covers: where exactly is area code 720?

What area code is 720?

720 covers the northern part of central Colorado, including major cities such as:

  • Denver

  • Aurora

  • Boulder

  • Lakewood

  • Thornton

  • Arvada

  • Westminster

The 720 area code time zone is Mountain time.

Quick history: The 720 prefix was first put into service in 1998 as an overlay for area code 303 and covers some of the same region. The area code 720 location serves counties like Arapahoe, Broomfield, Clear Creek, Gilpin, and Boulder. Check out a map of the area code.

Area codes are managed by the North American Numbering Plan Administrator (sometimes referred to as the NPA).

All your essential communications tools, included with a 720 area code number

Screenshot of a phone call happening in Dialpad's desktop app

A truly unified platform

Dialpad gives you a unified suite of communication channels (including phone calls, video conferencing, SMS/instant messaging, and even contact center AI)—and is still more affordable than most other telecom providers.

Screenshot of a video call happening in Dialpad's iOS and Android mobile app

Plays nice with any device

Use Dialpad’s desktop and mobile app across iOS, Android, PC, and Mac—or just use your web browser to join a video meeting or call, no downloads needed.

Screenshot of adding a call forwarding number from Dialpad’s online dashboard

Easy call forwarding

Never miss a call again. Dialpad’s call forwarding feature lets you choose up to five external numbers, so you can have calls automatically forwarded to your cell phone or landline, a colleague, or another department.

Screenshot of Dialpad's call routing options

Flexible call routing

Any good business phone system should come with call routing features that can get your callers to the right department or person—without you having to lift a finger. What's unique about Dialpad's is you can admin and make changes in minutes, right from your online dashboard, without bugging IT.

Screenshot of choosing a caller ID to display when making a work call from one's personal cell phone using Dialpad's app.

Shield your personal number

With Dialpad, you can make work calls from your personal cell phone—while showing your 720 area code work number and protecting your privacy.

Screenshot of Dialpad Ai transcribing a phone call in real time

Real-time call transcription

Dialpad’s built-in AI is built by our own team and integrated directly into the communications platform. What can it do? Not only can it transcribe phone calls and video meetings—in real-time— it can also detect highlights and action items. Just like your own personal secretary.

Screenshot of Dialpad Ai transcribing a voicemail message in real time

Voicemail transcriptions

When you're in back-to-back meetings all day, you can't always listen to every voicemail message. Dialpad's visual voicemail feature transcribes that audio into text, so you can quickly read your messages when it isn't convenient to listen to them. (It even emails the audio and text versions to you!)

Get more than a 720 area code number

Try all these features out in Dialpad's AI-powered collaboration platform! Sign up for a 14-day free trial to take it for a test drive. It takes just a few minutes, and you'll be set up with a 720 number too. Or, take a self-guided interactive tour of Dialpad to play with the app on your own first!

Why your business might need a Denver area code

With an estimated population of 693,000 people, Denver is the biggest city in the state of Colorado and the 19th largest in the United States. (It’s also seen as a gateway to the west coast and the midwest and southwest states.)

It’s an ideal place to get your business known—especially since the area generally has low unemployment and healthy disposable income. Notable businesses include the Gates Corporation, Frontier Airlines, and the Newport Mining Company. Many local residents work in healthcare, scientific, and technical services.

Even if you’re based on the other side of the country, setting up a Denver Colorado area code will give your company a local feel and help you target residents from Commerce City to Centennial. And if you're running regional marketing campaigns, having a local calling number increases the chances of potential customers dialing your number (since it's not long-distance).

Say you’re looking to expand into Littleton or Longmont. Your outbound contact center teams will also find it easier to connect with prospects and customers, since they'll be more likely to pick up if the phone call is coming from a recognizable local number.

Get your 720 area code business phone number in 4 easy steps

It’s super-easy to look up area codes and add a local number in Dialpad. When you sign up for a free 14-day trial, which takes just a few minutes, you’ll also be set up with a phone number with your area code of choice—in this case, a 720 area code.

Or, if you’re already with Dialpad, area code lookup and local number activation take just a few seconds too. To add another VoIP number, just:

Step 1. Navigate to Settings

Step 2. Choose “Add a Number”

Step 3. Check your local licenses and add a business phone line

Step 4. Confirm the new phone number or select it from the Change menu.

That’s it!

Get a communications platform along with your 720 area code number




$20 USD if billed monthly

1 License Minimum

  • Unlimited calling2
  • Call controls (call forwarding, transfer, hold, mute)
  • Custom voicemail greeting
  • Voicemail transcription
  • G Suite & Office 365 integrations
  • Fax (add-on)1
  • Custom off-hours routing


Contact us

100 License Minimum

All Pro plan features, plus:

  • 100% uptime Service Level Agreements (SLA)
  • Extensions
  • Unlimited office locations
  • Enhanced 24/7 Phone Support
  • Unlimited ring groups (departments)
  • Azure Integration
  • IAM/SSO Integrations (Okta, OneLogin)
  • Retention policies