Colorado Area Codes
Everything You Need to Know About CO Phone Numbers
If you’re looking to target customers in Colorado, understanding the area code structure in CO is essential. This blog explains how to get a Colorado virtual number and why it matters.
Colorado Area Codes Map
Colorado has several telephone prefixes covering different parts of the state. These are the codes 303, 720, 719, and 970.
What Are the Main Area Codes in Colorado?
- 303 Area Code – Serves the Denver Metro region
- 720 Area Code – Overlay of 303
- 719 Area Code – Covers Colorado Springs and surrounding areas
- 970 Area Code – Northwestern and western CO
Which Cities Use Which CO Area Code?
- Aurora – 303, 720
- Colorado Springs – 719
- Fort Collins – 970
- Pueblo – 719
CO Area Code Expansion Explained
The demand for new numbers due to business expansion led to the introduction of new codes like 970. Read more on Wikipedia.
Facts About the 303 Code
303 is one of the oldest area codes in the U.S.. It's now shared with its overlay 720.
What is an Overlay Area Code?
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 Colorado virtual 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.
Professional Phone Setup in Colorado
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.
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.
Who Uses CO Area Codes?
- 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.
FAQs About Colorado Area Codes
What cities use the 720 area code?
Cities like Denver, Boulder, Aurora, and Lakewood Colorado virtual number 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 CO 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.
Which area code should I use for my business?
303 and 720 are ideal if you're targeting Denver; 970 works best for northern cities; 719 is great for Colorado Springs.
Wrap-Up: CO Area Code Strategy
Getting a Colorado area code is a smart move for anyone serving Colorado customers. Whether you need a virtual phone number, VoIP service, or a business phone system, the right area code sets the tone.