Receiving unknown calls can be both annoying and potentially dangerous, as they may be from telemarketers, scammers, or robocallers. Fortunately, there are several strategies and applications available to help you block these unwanted calls and safeguard your privacy.
Why Am I Receiving Unknown Calls?
Unknown calls often originate from telemarketers, scammers, or robocallers who use automated systems to contact large numbers of people. These calls can be intrusive and sometimes fraudulent, aiming to deceive individuals into providing personal information or money.
How Can I Block Unknown Calls on My Smartphone?
1. Utilize Built-in Features:
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iPhone: iOS 26 introduced the "Ask Reason for Calling" feature, which intercepts calls from unknown numbers and prompts the caller to record their name and reason for calling. This message is then transcribed and displayed to you, allowing you to decide whether to accept, decline, or send the call to voicemail. This method effectively filters out robocalls and deters scammers who are unwilling to leave identifying information. (tomsguide.com)
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Android: Google is developing a system-level feature called "Verified Caller," integrated directly into Android via Google Play Services. This feature aims to combat spoofed calls by cross-checking incoming calls against a list of Do-Not-Originate (DNO) numbers, potentially identifying fraudulent calls before they reach you. (androidcentral.com)
2. Contact Your Mobile Carrier:
Many carriers offer services to help block unwanted calls:
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AT&T: Offers Call Protect, which displays a "V" (for verified) on your caller ID for legitimate calls and blocks potentially fraudulent calls by giving a busy signal. (consumerreports.org)
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T-Mobile: Provides Scam ID and Scam Block. Scam ID identifies and tags suspicious calls, while Scam Block blocks calls before they ring. (consumerreports.org)
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Verizon: Automatically enrolls eligible customers in the free version of Call Filter, which detects spam and blocks high-risk calls. (consumerreports.org)
3. Install Third-Party Call Blocking Apps:
Several apps are designed to identify and block unwanted calls:
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RoboKiller: This app not only blocks spam calls but also answers them with pre-recorded "answer bots" that waste the scammer's time. It boasts a 99% success rate in blocking robocalls and is available for both iOS and Android. (claritycheck.com)
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Truecaller: With a vast database of known spammers and telemarketers, Truecaller identifies unknown callers and automatically blocks spam calls. It also offers features like call recording and backup across devices. (fone.tips)
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Hiya: Hiya provides spam detection, call blocking, and reverse phone lookup. It integrates well with existing Android spam filters and offers a premium version with enhanced spam protection. (claritycheck.com)
Are There Any Free Options Available?
Yes, several free apps offer basic call-blocking features:
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Google Family Link: Ideal for Android users, it provides strong app control but has limited filtering and tracking capabilities. (tomsguide.com)
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Call Control: A community-powered blocklist with over 1 billion blocked numbers, offering both free and premium versions. (whocalledus.net)
How Effective Are These Methods?
While no solution is entirely foolproof, combining multiple tools and strategies can significantly reduce the number of unwanted calls you receive. Utilizing built-in features, carrier services, and reputable third-party apps can provide a comprehensive defense against unknown callers.
Conclusion
Dealing with unknown calls can be frustrating, but by leveraging the built-in features of your smartphone, utilizing carrier services, and installing effective call-blocking apps, you can take control of your privacy and reduce unwanted interruptions.
Highlights:
- Your Android phone could soon get a better way to sniff out spoofed calls, Published on Thursday, April 16
- Say goodbye to spam calls - NordVPN launches new spam call protection, Published on Tuesday, July 29
- I haven't answered a scam call in months - this hidden iPhone feature is why, Published on Wednesday, March 18



