Receiving calls from unknown numbers can be both inconvenient and potentially hazardous, as they often include spam or scam attempts. Fortunately, there are effective tools and strategies available to help you manage these calls and safeguard your privacy.
What Are the Risks of Unknown Calls?
Unknown calls can range from harmless wrong numbers to malicious scam attempts designed to steal personal information or money. Scammers often use caller ID spoofing to make their calls appear legitimate, increasing the risk of falling victim to fraud. (whocalledus.net)
How Can I Block Unwanted Calls?
There are several methods to block unwanted calls, including built-in phone features, carrier services, and third-party applications.
Built-in Phone Features
iPhone:
- Go to Settings > Phone.
- Enable Silence Unknown Callers to automatically silence calls from numbers not in your contacts.
Android:
- Open the Phone app.
- Tap the three-dot menu and select Settings.
- Enable Caller ID & Spam to filter suspected spam calls.
Carrier Services
Many U.S. carriers offer free spam call protection:
- AT&T: ActiveArmor provides network-level blocking and a mobile app for spam detection.
- Verizon: Call Filter offers basic spam detection and blocking features.
- T-Mobile: Scam Shield identifies and blocks scam calls, with Scam ID warnings. (whocalledus.net)
Third-Party Applications
For enhanced protection, consider third-party apps:
- Robokiller: Blocks 99% of spam calls and uses AI Answer Bots to waste scammers' time. (robokiller.com)
- Truecaller: Identifies and blocks spam calls using a vast community-driven database. (famisafe.wondershare.com)
How Do These Tools Compare?
While built-in features and carrier services offer basic protection, third-party apps like Robokiller provide more comprehensive solutions. Robokiller's AI Answer Bots not only block spam but also engage scammers, preventing them from targeting others. (robokiller.com)
Are There Any Free Options?
Yes, some carriers offer free spam protection, and apps like Truecaller provide free versions with essential features. However, premium versions often offer more robust protection and additional features. (whocalledus.net)
How Can I Report Spam Calls?
Reporting spam calls helps authorities track and combat fraudulent activities. In the U.S., you can report unwanted calls to the Federal Trade Commission (FTC) through their website. (whocalledus.net)
Conclusion
Managing unknown calls is essential for protecting your privacy and avoiding potential scams. Utilizing a combination of built-in features, carrier services, and third-party apps like Robokiller can provide comprehensive protection against unwanted calls.
Highlights:
- Who is Winning the Fight Against Robocalls? The Best Call-Blocking Apps & Tools in 2025 - YouMail Blog, Published on Thursday, February 13



