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 Colorado virtual number and why it matters.
Understanding the Area Code Regions in CO
Colorado has a few major dialing codes covering different parts of the state. These are area codes 303, 720, 719, and 970 respectively.
What Are the Main Area Codes in Colorado?
- 303 Area Code – Used primarily in Denver
- 720 Area Code – Also covers the Denver area
- 719 Area Code – Colorado Springs and southern CO
- 970 Area Code – Northwestern and western CO
Which Cities Use Which CO Area Code?
- Aurora – 303, 720
- Colorado Springs – 719
- Fort Collins – 970
- Grand Junction – 970
CO Area Code Expansion Explained
The demand for new numbers due to population growth led to the need for new codes such as 720. Read more on Wikipedia.
Facts About the 303 Code
303 is the original area code for Colorado. It's now shared with its overlay 720.
How Overlay Area Codes Work in Colorado
An overlay area code, like 720 over 303, allows new phone numbers without changing geographic coverage. 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.
VoIP Solutions for Colorado Numbers
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.
Colorado Area Code Lookup Tools
Use tools like AreaCodeLocations.info, AllAreaCodes, or NANPA to identify or verify area codes.
Should You Use a Local or Toll-Free Number in CO?
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
Colorado Phone Numbers for VoIP
Choose cloud-based phone systems from Bling.cloud,RingCentral, Nextiva, or Twilio if you want scalable solutions for Colorado-based numbers.
Frequently Asked Questions
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.
Do people still use 970?
Yes, 970 is actively used in Northern and Western Colorado cities like Fort Collins and Grand Junction.
Which CO code is best for business?
303 and 720 are ideal if you're targeting call forwarding Colorado number 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 looking to expand into the state. Whether you need a virtual phone number, VoIP service, or a business phone system, the right area code sets the tone.