What built-in features can help block spam calls on my phone?

Both Android and iOS devices have built-in features to combat spam. Android devices often include spam protection settings in the Phone app, while iOS devices offer the "Silence Unknown Callers" feature to silence calls from unknown numbers.

Effective Strategies to Reduce Spam Calls on Your Personal Phone

Spam calls are a pervasive nuisance, with Americans receiving over 52.5 billion robocalls in 2025 alone (antivirus.com). Fortunately, there are effective strategies to reduce these interruptions. Here's how you can protect your personal phone from unwanted calls.

Why Are Spam Calls So Common?

Spam calls have surged due to their low cost and ease of execution. Scammers can use Voice over Internet Protocol (VoIP) to dial thousands of numbers per hour at minimal expense (whocalledus.net). This widespread issue necessitates proactive measures to safeguard your privacy.

How Can I Block Spam Calls Using My Phone Carrier?

Many U.S. carriers offer free tools to help block spam calls:

AT&T: Provides Call Protect, which displays a "V" (for verified) on your caller ID for legitimate calls and blocks potentially fraudulent ones by giving a busy signal. To activate, visit your AT&T account online and enable Call Protect under Phone Features (consumerreports.org).
T-Mobile: Offers Scam ID and Scam Block. Scam ID identifies and tags suspicious calls, while Scam Block blocks calls before they ring. Activate Scam ID by dialing #ONI# (#664#) and pressing the call button (consumerreports.org).
Verizon: Features Call Filter, which provides spam detection and blocking. Enable it through the My Verizon app under Account > Call Filter (whocalledus.net).

What Built-In Features Can Help Block Spam Calls?

Both Android and iOS devices have built-in features to combat spam:

Android: Many devices, especially Google Pixel and Samsung Galaxy, offer robust spam protection. For instance, the Google Phone app allows you to filter spam calls by enabling "See caller & spam ID" and "Filter spam calls" in the settings (whocalledus.net).
iOS: The "Silence Unknown Callers" feature silences calls from numbers not in your contacts, sending them directly to voicemail. Activate it by going to Settings > Phone > Silence Unknown Callers (techradar.com).

Which Third-Party Apps Are Effective in Blocking Spam Calls?

Several apps specialize in identifying and blocking spam calls:

Truecaller: With a vast database of over 500 million spam numbers, Truecaller offers real-time caller ID, spam call auto-block, and fraud detection alerts. It's available for both Android and iOS (rahsha.in).
Hiya: Trusted by major carriers like AT&T and T-Mobile, Hiya provides spam detection, caller ID, and call blocking. It has a global user base of 100 million and has blocked over 10 billion robocalls (antivirus.com).
RoboKiller: Known for blocking 99% of robocalls, RoboKiller also features AI "Answer Bots" that waste scammers' time. It's available for iOS and Android (whocalledus.net).

How Do I Report Spam Calls to Authorities?

Reporting spam calls helps authorities track and combat fraudulent activities:

Federal Trade Commission (FTC): File a complaint with the FTC at ReportFraud.ftc.gov.
Federal Communications Commission (FCC): Report unwanted calls to the FCC at consumercomplaints.fcc.gov.

What Are Additional Tips to Stay Safe from Spam Calls?

Beyond blocking and reporting, consider these practices:

Do Not Share Personal Information: Never provide personal or financial details over the phone unless you're certain of the caller's identity.
Be Cautious with Unknown Numbers: If you receive a call from an unfamiliar number, let it go to voicemail. Legitimate callers will leave a message.
Regularly Update Your Phone's Software: Ensure your device has the latest security updates to protect against potential threats.

By implementing these strategies, you can significantly reduce spam calls and enhance your phone's security.