Identify Unknown Numbers Using Colorado Phone Number Lookup
Identify the true owner of any Colorado phone number because scammers spoof 303 and 720 Denver numbers to pose as sheriff's deputies claiming there is a warrant out for missing jury duty, while 970 Fort Collins numbers are commonly used for Xcel Energy shutoff threats. In Colorado Springs, 719 numbers are used for fake process server threats and Social Security benefit suspension calls. Our database search results may include:
Owner name and address
Location based on area code
Scam and Spam reports by users
Our database contains over 25 million Do Not Call and robocall complaints reported to the FTC.
Federal Data
State Data
County Data
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Colorado Phone Numbers by Area
Denver Phone Number Lookup (303/720/983)
The Denver metro is covered by three overlay codes: 303, 720, and the newer 983, serving Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, Centennial, Boulder, and Highlands Ranch along the Front Range. The 303 code is seeing a spike in fake FedEx undelivered package links and SNAP government benefits threats designed to steal tracking information or personal data. The 720 overlay is being used for Boulder County Sheriff jury duty warrants and EMI "failure to comply" delivery scams involving fake document signatures. The 983 overlay is linked to highly aggressive phishing calls targeting seniors' birthdays and private health information, alongside relentless late-night hang-up calls. Victim reports for all three Denver codes are available in our 303 phone number lookup, the 720 reverse phone lookup, and the 983 area code lookup.
Fort Collins, Greeley & Loveland (970/748)
Numbers in the 970 phone number lookup cover northern Colorado and the Western Slope, including Fort Collins, Greeley, Loveland, Grand Junction, and Clifton, alongside the 748 overlay. The 970 code is seeing a rise in "Elite Process Server" tax lien threats and fake Colorado solar mandates promising large rebates to switch your energy provider.
Colorado Springs Phone Number Lookup (719)
Numbers starting with 719 come from southern Colorado, including Colorado Springs, Pueblo, Security-Widefield, Pueblo West, and Fountain. The 719 area code is seeing aggressive Pueblo County process server threats and "National Disability" benefit suspension calls, where callers threaten to alert your supervisor about a lawsuit or trick seniors into revealing their SSN to avoid losing Medicare. Avoid falling into these traps by referencing the 719 area code lookup to see who actually owns the number.
Most Reported Spam Numbers in Colorado
In 2024, Colorado residents filed 41,173 unwanted call complaints with the FTC, of which 21,841 were robocalls and 15,876 involved live callers.
The most reported complaint topics were imposters (4,409), reducing debt (4,149), medical and prescriptions (2,244).
Phone numbers reported as unwanted calls to the FTC by local residents in the last 30 days:
Phone Number
Complaints
Last Reported
(256) 274-0005
16
(309) 301-1878
11
(217) 834-9346
10
(321) 499-1628
10
(855) 787-6725
10
(855) 357-2205
10
(855) 994-2073
10
(321) 499-1896
9
(321) 499-1777
8
(877) 578-3768
8
Reporting spam is the best way to stop these calls. Reach out to these offices today:
Colorado Attorney General "Stop Fraud" Hotline:(800) 222-4444
Colorado's Do Not Call Registry
Colorado residents can protect themselves from unwanted telemarketing calls by registering with the Colorado No-Call List. The state requires residents to register on both the Colorado No-Call List and the National Do Not Call Registry for maximum protection. You can sign up online at ColoradoNoCall.com or by calling 800-309-7041, with registration available 24/7 at no cost to consumers.
Colorado's system operates on a quarterly update schedule, with telemarketers receiving updated lists on January 10, April 10, July 10, and October 31 each year. Telemarketers have 20 days after each update to remove registered numbers from their calling lists. Complaints can only be filed after the enforcement dates that follow each quarterly update period.
The state law includes standard exemptions for calls with prior permission, calls from businesses with existing relationships, charitable organizations, and political calls or polls. However, Colorado has specific enforcement thresholds - state action requires a pattern of at least three violations per month to any numbers on the list, not necessarily to the same number.
Violations can be reported through the Colorado No-Call List website, with complaint information shared with the Colorado Attorney General's Office for potential enforcement action. Residents may also pursue private remedies through small-claims court under the Colorado Consumer Protection Act, giving consumers both state and individual legal options.
When using reverse phone lookup services to identify unknown callers, understanding Colorado's dual-registration requirement and quarterly enforcement schedule helps you recognize which calls may be violations worth reporting to state authorities.
Is Reverse Phone Lookup Legal in Colorado?
Yes. Colorado has no law prohibiting residents from using reverse phone lookup services for personal use, but it does have one of the more robust state privacy frameworks in the country. The Fair Credit Reporting Act (FCRA) prohibits using lookup results for employment, tenant, credit, or insurance decisions in every state. Colorado's state law adds rights on top of these federal minimums.
Your Privacy Rights as a Colorado Resident
The Colorado Privacy Act (CPA, Colo. Rev. Stat. § 6-1-1301 et seq.) took effect July 1, 2023 and was further amended in 2025. Colorado was the third state after California and Virginia to enact a comprehensive privacy law. The CPA requires covered businesses to honor opt-out requests within 45 days and gives residents the right to access, correct, delete, and receive a portable copy of their personal data. Colorado also requires businesses to support a universal opt-out mechanism - meaning residents can use a browser-level privacy signal to opt out across multiple services at once, without visiting each site individually.
Colorado supplements the CPA with a separate Biometric Information Privacy statute (HB 21-1189), giving residents additional control over fingerprint, facial recognition, and other biometric data. This does not directly affect phone lookup services but reflects the state's broader privacy-first approach. There is no blanket nonprofit exemption under the CPA, though general nonprofit status does provide a partial exemption.
FAQs
How to opt out of phone number lookup services in Colorado?
Under the Colorado Privacy Act (CPA), you have the right to delete your personal information and opt out of its sale. Visit each reverse lookup site and submit a deletion request through their opt-out page.
How to confirm a Colorado business caller is real?
Getting a business name from a phone lookup is helpful, but verification is key. With over 181,963 business establishments in Colorado according to Census data, confirming the company through the Colorado Business Database is the safest approach.
What types of phone numbers are in Colorado?
Colorado has about 6.6 million mobile subscriptions compared to 1.2 million VoIP lines and 360,000 landlines. Mobile and VoIP together make up over 95% of all phone numbers.
