Everything You Need to Know About CO Phone Numbers
If you’re looking to expand your business into Colorado, understanding the area code structure in CO 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 several telephone prefixes covering different parts of the state. These are 303, 720, 719, and 970.
What Are the Main Area Codes in Colorado?
- 303 Area Code – Covers Denver and Boulder
- 720 Area Code – Overlay of 303
- 719 Area Code – Colorado Springs and southern CO
- 970 Area Code – Northwestern and western CO
Cities Using Colorado Area Codes
- Denver – 303, 720
- Colorado Springs – 719
- Greeley – 970
- Pueblo – 719
Reason Behind Colorado’s Area Code Growth
The demand for new numbers due to technology adoption led to the introduction of new codes like 970. Read more on Wikipedia.
Where is 303 Located?
303 is one of the oldest area codes in the U.S.. It's now shared with its overlay 720.
Colorado Area Code Overlays
An overlay area code, like 720 over 303, allows new phone numbers without changing geographic coverage. Learn more on FCC.gov.
How to Get a Colorado Virtual Number
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.
Colorado Area Code Lookup Tools
Use tools like AreaCodeLocations.info, AllAreaCodes, VoIP with Colorado area code or NANPA to identify or verify area codes.
Why Local Numbers Work Best in Colorado
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.
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 local 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.
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.
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.