Colorado Phone Number Lookup

Area codes 303, 719, 720, 748, 970, and 983

Take the map with you

Poster format with every Colorado area code, its overlays, and a QR code back to this page.

Download the printable PDF

Colorado Phone Numbers and Area Codes

Phone numbers in Colorado consist of a three-digit area code followed by a seven-digit local number. The area codes used in Colorado include 303, 720, 983, 719, and 970. These area codes help in identifying the specific geographic region or city associated with the phone number. For example, the 303 and 720 area codes are primarily assigned to the Denver Metropolitan Area, while the 970 area code covers the northern and western parts of the state, including cities like Fort Collins and Grand Junction. The 719 area code is used for the southeastern part of the state, including cities like Colorado Springs and Pueblo. The 983 area code is a future area code reserved for when the existing codes are exhausted.
Colorado has seen a notable shift toward wireless communication. Data from 2023 shows that 80.7% of Colorado adults rely solely on mobile phones, up from 63.4% in 2019—a gain of over 17 percentage points in four years. Colorado residents who primarily depend on mobile phones make up 11.1%, while 3.6% rely on both mobile and landline. Adults who mainly use a landline and those who rely exclusively on landlines have declined to 2.4% and 1.0% respectively. The share of adults lacking phone access stands at 1.2%. Colorado now ranks among the top states for mobile-only adoption, reflecting the state's tech-forward population.

Colorado telephone statistics

Percentage of Telephone Users by Type (Year: 2023)

Understanding this data

The pie chart shows how Colorado adults used telephones in the year 2023. The bar chart below tracks how each category changed from 2019 to 2023. 2023 is the most recent year of data available.

Wireless-only — rely solely on cell phones.

Wireless-mostly — primarily cell phone, may have a landline.

Dual users — use both about equally.

Landline-mostly — primarily use a traditional home phone.

Landline-only — depend entirely on a landline.

Phoneless — no phone service at all.

Colorado telephone statistics over time

Select a metric to view change over time

Colorado Free Reverse Phone Number Lookup

If you're trying to find a phone number in Colorado without spending a dime, there are several resources you can use. The Colorado State Telephone Directory website is a great starting point. This online directory allows you to search for phone numbers of state employees and agencies. Simply enter the name of the individual or agency in the search bar to find their contact information. Another valuable resource is the Colorado Department of Higher Education's website. This site provides a comprehensive list of colleges and universities in Colorado, along with their contact information. Whether you're looking for the phone number of a specific department or the main switchboard, this site can help you find the information you need. Remember to use this information responsibly and respect privacy laws and guidelines.
Another approach to perform a reverse phone lookup in Colorado for free is through government websites and public records. The Colorado Judicial Branch website allows users to search court cases by party name, which can be beneficial if you have additional details about the person associated with the phone number. Local community directories and phone books are also a valuable resource. Many Colorado communities have online directories that allow residents to find information about other community members, however, they usually are not public and require you to be part of the community in order to access the information about the phone numbers.

Colorado Phone Lookup FAQ

Who is calling me from a 303 number?
303 is a Colorado area code. Enter the full 10-digit number in the search box above and Lookify will show the carrier, whether it is a mobile or landline, the location, and any community spam reports for that number. A full report adds the owner name and more. The 303 phone number lookup page lists the cities that area code covers, its time zone, and recent reports.
What area codes does Colorado use?
Colorado uses 6 area codes: 303, 719, 720, 748, 970, and 983. Each area code page lists the cities it covers, its time zone, and recent reports.
Is a 303 number a scam?
Not on its own. Scammers spoof Colorado area codes so a call looks local. Look the number up to check its line type and carrier, then read what other people have reported before you call back.
How do I look up a Colorado phone number for free?
Type the number into the search box on this page. The free result shows the carrier, line type, and location. A full report adds the owner name, address history, and more.

Enter a phone number,
instantly find out who called

Obtain owner name, address, and more. Know if a phone number is associated with spam or scam callers.

Trusted By Thousands
Real-Time Data

Report a Scam / Spam Call from Colorado

Learn how to report unwanted calls and protect yourself.

Most reported numbers

1719-633-3209
Scam
2719-578-9162
Robocall
3303-758-8976
Fraud

Sources

Lookify Logo
Phone number intelligence, delivered. Discover who's calling with comprehensive phone data: owner info, carrier, location, and risk assessment.
Lookify is not a consumer reporting agency as defined by the Fair Credit Reporting Act (FCRA). You cannot use Lookify to make decisions about potential employment, tenant/resident screening, or any purpose covered by the FCRA.
Download the Lookify App:
Download on the App StoreGet it on Google Play