Colorado phone numbers

Power up your business in the Rocky Mountains with a Colorado phone number.
Colorado phone number

Searching for a Colorado phone number to unlock your business potential? Here’s Chalkboard, a virtual phone number designed specifically for small businesses, startups and freelancers. This advanced, affordable and easy-to-use number gives you everything you need from a modern phone system.

With a growth rate of 2.4 per cent, Colorado’s gross state product touched $371.3 billion in 2022. This impressive feat demonstrates the potential of this great state. Whether you’re looking for a Denver phone number or a Colorado Springs phone number for your business, here’s the perfect solution for you.

An advanced phone number for an emerging tech centre

Most people assume that Colorado is mostly about tourism. While that’s a vibrant sector, the state offers much more. Colorado is ranked number one in private aerospace employment creation and the second-best place to start a business. It’s also ranked the second-best state for technology and science and the number-three state for startup early job creation. The state also has the fourth-highest concentration of STEM workers.

Your business can enter into productive partnerships with companies from diverse sectors. That will be easier if you appear professional and credible. With a Chalkboard Colorado phone number, you can effortlessly do that. Your business will seem rooted in the state, which will make you trustworthy.

Rise above the rest with an innovative Colorado number

Colorado’s business landscape has been witnessing steady growth. The over 816,000 businesses in the state have seen a five-year growth rate of 3.3 per cent. The average annual employment growth in the state is 1.4 per cent. These point to the stability and competitiveness of the state’s economy.

A Chalkboard Colorado phone number helps you distinguish your business from the rest. What you get is a local number with group broadcast and auto-reply, among others. You can also share your number with your team. Since it’s a virtual number, you don’t have to buy an additional device or get a SIM. All you have to do is download the app.

Which Colorado phone numbers can you choose?

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CodeArea served

Area code 303 is located in central Colorado and covers Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, and Centennial. It has 2 overlays (720 and 983) that serve the same area.


Area code 719 is the area code for Colorado Springs, CO and the surrounding areas. It is the only area code that serves the area.


Area code 720 is located in central Colorado and covers Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, and Centennial. It is an overlay for area code 303 and serves the same area.


Area code 970 is located in north and western Colorado and covers Fort Collins, Greeley, Loveland, and Grand Junction. It is the only area code that serves the area.


Area code 983 is located in central Colorado and covers Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, and Centennial. It is an overlay for area code 303 and serves the same area

How to use your Colorado phone number

Just install the app, choose your new phone numbers and start calling & messaging with the whole team straight away.

Choose business phone numbers

Choose the virtual Colorado phone number that you like and secure it instantly. There's no setup fees.

Install the app

It's available on the Apple App Store® (for iPhone®), or on Google Play (for Android phones such as Samsung).

Customise your virtual numbers

Set up your customisable auto-replies and voicemails. Don’t worry if you miss something, you can always make changes later. There are no extra charge for features or calls.

Invite the team

With a few more taps, you can invite the rest of your team. When a call comes in, anyone in the team can pick up. It also allows anyone in the team to make calls from the number and send/reply to SMS.

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Colorado phone number codes and the areas they serve

Expand your business and build better connections by selecting any of these Colorado area codes from Chalkboard.

Give your Colorado business a unique advantage

Small businesses make up over 99 per cent of all enterprises in Colorado! This means that you need to be innovative in your marketing and customer service. A Chalkboard Colorado phone number empowers you to reach more people in one go thanks to broadcast SMS.

With voicemail and team number-sharing, you can separate your work and personal lives and get a better work-life balance. Download this affordable and easy-to-use Colorado phone number and see how it can change your life.

The easy way to share phone numbers with your team

Chalkboard gives you all the business calling and messaging features you need, without a phone system.

Completely flexible

Text and call as a team with shared or private numbers. Flexible and simple.

Takes minutes to set up

No contracts, no phone system, no SIM cards, and no configuration. Just install the app and go!

All the features you need

Including missed call auto-reply, working hours, templates, and much more...

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Select your Colorado number, instant free setup

You can take a free trial of Chalkboard and discover all of our great features, without any commitment or risk.

It's the easy way for your team to text and call together without the hassle and complexity of a phone system!

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FAQs: Colorado local numbers

Will I be able to use my Colorado area code number outside of Colorado?

Yes, that's a major benefit of using virtual local phone numbers. You'll be able to use your CO number from anywhere in the country (and even whilst you're out of the country!).

Can I only get area codes within Colorado (CO)?

We can provide virtual numbers for almost anywhere in the country. So you can choose a local virtual number in every area that you serve if you need.

I need more than one CO number, is that possible?

Yes, once you've chosen your first number and logged into the app, you can then add new virtual Colorado numbers with just a few taps, with instant setup.

Can I use my Colorado number for SMS (text messages)?

Your virtual number will be fully enabled for phone calls, and also text messaging. It's fully business ready. If you have a team, you can even share the number with others on your team.

How do I answer calls to my phone numbers?

You simply need to install our mobile app, and then you'll be able to receive calls, make calls, and send/reply to text messages too.

Colorado (CO)

All area codes within Colorado