Have you ever received a call from an unknown number and wondered, “Who could that be?” You’re not alone. Unidentified calls can be anything from harmless telemarketers to potential scams. Fortunately, reverse phone lookup apps make it easy to find out who’s behind those mysterious numbers. These tools can reveal the caller’s name, address, and in some cases, even social media profiles.
Here’s a list of the 8 best reverse phone lookup apps that can help you quickly identify callers and avoid unwanted interruptions.
1. Truecaller
Truecaller is one of the most popular apps in this category. With over 500 million downloads, it provides real-time caller ID, spam detection, and blocking features. It’s especially effective in identifying telemarketers and robocalls.
- Available on Android and iOS
- Blocks known spammers automatically
- Includes a caller ID and messaging feature
2. Hiya
Hiya is another top-rated reverse phone lookup app that identifies incoming calls and blocks spam numbers. It uses a robust database and is known for its accuracy and clean user interface.
- Free to use with optional premium features
- Real-time spam alerts
- No ads in the free version

3. NumLookup
If you’re looking for a web-based solution rather than an app, NumLookup is a fantastic option. It’s a free, no-frills website that can identify phone numbers without requiring you to sign up or install anything.
- No account needed
- Simple and quick results
- Ideal for occasional use
4. BeenVerified
BeenVerified offers a comprehensive background check service that includes reverse phone lookup. It provides detailed reports that may include name, address, criminal history, and even social media profiles.
- Subscription-based service
- Also offers email and people search
- User-friendly and trustworthy
5. Mr. Number
Mr. Number is great for blocking unwanted calls and identifying suspicious numbers. It allows users to report scams and spam calls, contributing to a community-generated database of flagged numbers.
- Community-based spam detection
- Create custom block lists
- Free with in-app purchases

6. Spy Dialer
Spy Dialer stands out by offering search-by-phone number, name, email, and even address. It’s completely free and pulls data from public records, social profiles, and other online sources.
- Free web tool
- Video and photo lookup features
- Accurate for publicly available data
7. Whoscall
Whoscall is an excellent choice if you often travel or receive international calls. It’s powered by a global database of over a billion numbers and allows offline identification—a unique feature among lookup apps.
- Works offline
- Global number database
- Call filtering and SMS blocking
8. Intelius
Intelius provides detailed reverse phone lookup reports with information like owner’s name, address, and even age. It is often used for more rigorous background research beyond mere call identification.
- Subscription required
- Comprehensive reports
- Well-respected in the industry
Why Use a Reverse Phone Lookup App?
These apps do more than satisfy curiosity—they can protect your privacy and security. Whether it’s avoiding scams, blocking spam, or reconnecting with a missed contact, identifying the caller gives you the power to decide how to respond.
Not all apps are created equal, though. Some offer more features or deeper insights, depending on whether you’re willing to pay for a subscription. It’s worth considering your needs before deciding on the right tool.
Final Thoughts
With so many reverse phone lookup apps available today, finding out who called you has never been easier. Whether you want a simple app like Truecaller or a full background check service like BeenVerified, there’s a tool out there for everyone.
Try a few of these suggestions and see which one best fits your needs. The next time an unknown number flashes on your screen, you’ll be ready with just a tap.