Colorado Reverse Phone Lookup

Identify Phone Number Location Using Colorado Area Codes

To identify the location of an Colorado phone number, you need to understand the North American Numbering Plan (NANP) structure that all Alabama numbers follow: +1 NPA NXX XXXX.

• +1 - Country code indicating the United States
• NPA - The area code reveals the geographic region where the number was originally assigned
• NXX - Central office code that locates the specific neighborhood and identifies the service provider
• XXXX - Subscriber number identifies the individual phone line within that local exchange

The area code (NPA) is your key to determining location. By matching the three-digit area code to Colorado's regional assignments, you can identify which part of the state the phone number originates from. Each area code corresponds to specific cities and counties throughout Colorado, making it possible to narrow down the caller's general location.

Here's a complete list of Colorado area codes with major cities:

For latest Colorado phone numbering regulations, contact Gladys Rey at the Colorado PUC via [email protected] or 303-894-2843.

Colorado Phone Numbers

Colorado has approximately 8.2 million active phone numbers. Cell phones are the most popular with 6.6 million users, while traditional landlines are declining with 360,000 connections statewide. Internet phone services account for about 1.2 million numbers.

This indicates that searching a Colorado phone number will most likely lead to a cell phone. The decrease in landlines suggests that newer phone numbers may be harder to trace compared to older landline numbers with more readily available public information.

Colorado Voice Subscriptions (in thousands):

Source: FCC Voice Telephone Services Report

Top 5 US Cell Phone Companies

Most phone numbers are cell phones, and most cell phone numbers come from the top three United States wireless companies. Here are the top five US Cell Phone Companies in Q1 2025:

• Verizon - 146 million customers
• T-Mobile US - 131 million customers
• AT&T Mobility - 118 million customers
• Boost Mobile - 7 million customers
• U.S. Cellular - 4.4 million customers

Robocalls and Unwanted Calls in Colorado

Colorado residents experienced a moderate volume of unwanted calls in 2024, with complaints totaling 41,173, ranking the state #10 nationally for complaints per 100K population, according to the latest National Do Not Call Registry Data Book.

Key Facts for Colorado Residents:

• 21,841 of Colorado's 41,173 complaints involved automated robocalls, representing a large portion of all unwanted call reports statewide.
• 4,409 complaints were for imposter scams, followed by debt reduction (4,149) and medical & prescriptions (2,244) schemes, showing these remain the top threats to Colorado families.
• 4,870,177 Wisconsinites have registered their numbers on the Do Not Call Registry, ranking #12 nationally per 100k population.
• A drop in complaints from 2021's peak of 111,910, shows that protective measures are making a real difference for Colorado households.
• 15,876 complaints involved live callers, indicating that human-operated scam operations continue actively targeting the state.
• 3,456 complaints had call types not reported, indicating that complete data for this state is still unknown.

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.

Verify Phone Number Owner to avoid Scam Calls Colorado Fraud Statistics

According to the Federal Trade Commission's 2024 data, phone calls and text messages make up 35% of all fraud contact methods nationwide:

• Phone calls: 19% of fraud reports (284,659 reports, $948M in losses)
• Text messages: 16% of fraud reports (246,784 reports, $470M in losses)

More than 1 in 3 fraud attempts happen through phone communication. Phone call fraud costs victims a median of $1,500 per case. Text message fraud costs a median of $1,000 per victim.

In 2024, Colorado residents reported 44,945 fraud cases resulting in total losses of $210,727,907, with a median loss of $500 per victim. With phone-based fraud representing such a significant portion of these cases, phone owner verification has become a critical consumer protection tool.

When you receive calls from unknown numbers, take a moment to research the caller's identity. Reverse phone lookup services allow you to search a phone number to find information about who's calling—including whether the number has been reported for fraudulent activity.

Received fraudulent calls or fallen victim to phone fraud? Report it immediately. Each report helps authorities identify fraud patterns and protect other consumers from similar scams.

Additional Contact:
Colorado Attorney General
Phil Weiser
(720) 508-6000

Other Colorado Phone Number Search Methods

When a reverse phone lookup doesn't give you enough information, alternative search methods can help you identify Colorado phone numbers. With a population of 5,957,493 and 181,963 business establishments in Colorado, pinpointing a phone number's owner sometimes requires trying a few different approaches.

Social Media Phone Number Searches

Social media platforms can be useful tools for finding information connected to a phone number, especially if you are trying to confirm someone's identity. For example, if you're meeting someone new and want to verify their phone number's legitimacy, social media can help.

• Facebook: Search for the phone number using Facebook's general search bar or use the Facebook public directory. Some users include their phone numbers in their profiles, which can make it searchable.
• LinkedIn: LinkedIn can be useful for verifying someone's professional identity. Try searching the number in LinkedIn's search bar or use the LinkedIn people directory. Given Colorado's numerous businesses, you may be able to verify a person's work affiliation this way.

Colorado Business Phone Verification

If you're trying to identify a phone number associated with a Colorado business, official state databases can be very helpful. For example, if you're considering business partnerships with Colorado companies, verifying their phone number and official registration information is crucial.

• Colorado Secretary of State: Use the Colorado Secretary of State website to search for registered businesses.
• Colorado Business Database Search: Visit the Colorado Business Database Search portal and enter the phone number or other business details to find official records. This can give you the registered business name, address, and other important information.

For the best results, it helps to use these methods together.

Are Reverse Phone Lookups Legal in Colorado? Your Privacy Rights Under the CPA

YES - Reverse phone lookups are generally legal in Colorado, but your personal data connected to your phone number is protected under the Colorado Privacy Act (Senate Bill 21-190), which gives you specific rights to control how companies use your information.

The Colorado Privacy Act, which took effect July 1, 2023, doesn't ban reverse phone lookups but provides strong protections for your personal data that might be included in these services.

What Phone Data is Protected Under Colorado Law?

Under the Colorado Privacy Act, "personal data" includes any information that is linked or reasonably linkable to an identified or identifiable individual. For phone lookup services, this covers your name linked to your phone number, address information, location data, and online identifiers that can be traced back to you.

Your Privacy Rights: What You Can Do

Colorado residents have five key rights when companies collect their personal data:

1. Right to Opt Out - Stop companies from selling your personal data or using it for targeted advertising
2. Right to Access - Find out what personal data companies have collected about you
3. Right to Deletion - Request that companies delete your personal data
4. Right to Correction - Fix inaccuracies in your personal data
5. Right to Data Portability - Get your data in a format you can use elsewhere

How to Exercise Your Rights

Companies must respond to your requests within 45 days. Submit requests through methods specified in the company's privacy notice, and companies cannot require you to create a new account to exercise your rights. Most requests are free. For guidance on exercising your rights, visit the Colorado Attorney General's CPA resource page.

When Does the Colorado Privacy Law Take Effect?

The Colorado Privacy Act has been in effect since July 1, 2023. It applies to companies that conduct business in Colorado or target Colorado residents and process personal data of 100,000+ consumers per year, or sell personal data and process data of 25,000+ consumers.

Can You Remove Your Phone Number from Lookup Databases?

Yes, under the Colorado Privacy Act, you can request deletion of your personal data from companies covered by the law and opt out of having your data sold to third parties. However, companies may keep your data if needed for legal compliance or fraud prevention.