Everything You Need to Know About CO Phone Numbers

If you’re looking to target customers in Colorado, understanding the Colorado area code system is essential. This blog explains how to get a VoIP number with a CO area code and why it matters.

Colorado Area Codes Map

Colorado has four main area codes covering different parts read more of the state. These are 303, 720, 719, and 970.

Breakdown of CO Phone Codes

• 303 Area Code – Serves the Denver Metro region
• 720 Area Code – Overlay of 303
• 719 Area Code – Serves Pueblo and southeastern Colorado
• 970 Area Code – Serves cities in Northern Colorado

Cities Using Colorado Area Codes

• Denver – 303, 720
• Boulder – 303, 720
• Fort Collins – 970
• Pueblo – 719

Why Are There Multiple Area Codes in Colorado?

The demand for new numbers due to technology adoption led to the need for new codes such as 720. Read more on Wikipedia.

Where is 303 Located?

303 is one of the oldest area codes in the U.S.. It's now still in use with 720.

Colorado Area Code Overlays

An overlay area code, like 720 over 303, allows multiple users in the same location to have unique numbers. Learn more on FCC.gov.

Buy a Colorado Area Code for Business

Businesses can get a local CO number to build trust with local clients. Services like Bling’s virtual phone number platform make setup easy.

Colorado VoIP Providers

Modern businesses use VoIP phone services to assign local Colorado numbers to sales or support teams. It’s cost-effective and flexible.

Business Phone Systems for CO Area Codes

To fully manage calls and teams, choose a business phone system that supports routing, voicemail, SMS, and extensions – ideal for companies targeting Colorado.

How to Find an Area Code in Colorado

Use tools like AreaCodeLocations.info, AllAreaCodes, or NANPA to identify or verify area codes.

Benefits of Local vs 800 Numbers

Local CO numbers like 303 or 970 tend to get higher response rates than toll-free numbers. Use a Colorado business phone number to increase conversions.

Business and Personal Uses of Local Numbers

• Sales and outbound calls
• Customer service or support lines
• SMS-based marketing campaigns
• Remote work call routing

Set Up a VoIP Line in Colorado

Choose cloud-based phone systems from Bling.cloud,RingCentral, Nextiva, or Twilio if you want scalable solutions for Colorado-based numbers.

FAQs About Colorado Area Codes

What cities use the 720 area code?

Cities like Denver Metro area use the 720 overlay.

Is 719 a mobile or landline code?

It can be both. Use copyright lookup tools to verify.

Can I get a CO number if I live outside the state?

Yes, VoIP services allow you to own a Colorado number from anywhere in the world.

Is 970 obsolete?

Yes, 970 is actively used in Northern and Western Colorado cities like Fort Collins and Grand Junction.

Most trusted area code for Colorado businesses?

303 and 720 are ideal if you're targeting Denver; 970 works best for northern cities; 719 is great for Colorado Springs.

Conclusion: Choosing the Right Colorado Area Code

Getting a Colorado area code is a smart move for anyone wanting local presence in CO. Whether you need a virtual phone number, VoIP service, or a business phone system, the right area code sets the tone.