How to Block Junk Phone Calls Today

Understanding Junk Phone Calls and Why They're a Problem

Junk phone calls have become one of the most common complaints received by the Federal Communications Commission (FCC). In 2023, Americans received an estimated 3.7 billion spam calls annually, according to YouMail data. These unwanted calls range from robocalls promoting products you never requested to scams attempting to extract personal information or money.

Junk calls fall into several categories. Telemarketing calls try to sell you products or services. Robocalls use automated systems to deliver pre-recorded messages. Scam calls impersonate banks, government agencies, or companies to trick you into sharing personal details or paying money. Spoofed calls display fake phone numbers on your caller ID—often numbers similar to yours—to make you more likely to answer.

The problem has worsened because technology makes it cheaper than ever for bad actors to reach millions of people. Caller ID spoofing technology allows scammers to mask their true identity. Voice over Internet Protocol (VoIP) services enable calls from anywhere in the world for minimal cost. Lists of phone numbers are bought and sold on the dark web, ensuring that once a number is targeted, it may receive dozens of calls daily.

Beyond annoyance, junk calls pose real risks. According to the FTC, Americans lost over $29.8 billion to fraud in 2023, with phone scams accounting for a significant portion. Older adults are particularly vulnerable—the FTC reports that adults over 60 lost $1.0 billion to scams in 2023 alone. Scammers may pose as Social Security Administration officials, IRS agents, or family members in distress, creating urgency that leads people to act without thinking.

Takeaway: Understanding that junk calls are widespread, increasingly sophisticated, and potentially dangerous helps you take protection seriously rather than viewing them as mere annoyances.

Built-In Phone Features and Settings You Can Use Now

Both Android and iPhone devices include built-in features designed to reduce junk calls. Learning to use these settings is often your first line of defense and costs nothing.

iPhone users can navigate to Settings > Phone > Silence Unknown Callers. This feature automatically sends calls from numbers not in your contacts, recent calls, or Siri Suggestions directly to voicemail. The calls still arrive, but they don't interrupt you with a ring or notification. This is particularly effective because legitimate contacts will appear as known callers. However, you'll want to check your voicemail regularly, as important calls—such as from doctors' offices or delivery services—may go straight to voicemail if you haven't spoken with them before.

Android devices offer a similar feature called Spam Protection, available on most newer phones through the Phone app settings. Go to Settings > Call Settings > Spam and Abuse Protection and toggle it on. Android also allows you to block specific numbers directly. Open the Phone app, find a junk call in your recent calls list, tap the number, and select "Block/Report as Spam." This prevents that specific number from calling you again.

Both platforms allow you to create a custom contact group or list and then apply blocking rules. You can set your phone to accept calls only from contacts in a "Trusted Callers" list and send all others to voicemail. This extreme approach works well for people who prefer privacy but may cause you to miss important calls, so use it only if you're willing to regularly check voicemail.

Another useful setting is "Do Not Disturb" mode. You can schedule when this activates—for example, during work hours or after 9 PM—and configure it to allow only calls from your favorites or contacts. This doesn't block calls, but it silences them and keeps your focus uninterrupted.

Takeaway: Spend 10 minutes exploring your phone's built-in settings. The "Silence Unknown Callers" or "Spam Protection" features alone will reduce unwanted interruptions significantly without requiring any additional apps or services.

Using Third-Party Call Blocking Apps and Services

If your phone's built-in features aren't reducing junk calls enough, third-party apps offer more advanced filtering. Many are free, though some offer premium versions with additional features.

Nomorobo is a popular free call-blocking service available as an app and through partnerships with phone carriers. The service maintains a database of known spam numbers and blocks calls before they reach your phone. Users can also report junk calls to the Nomorobo database, helping identify new spam numbers. The app is available for both iPhone and Android and can be set up in minutes.

TrueCaller is another widely used app that identifies incoming callers and blocks spam automatically. The app displays caller information even for unknown numbers and allows you to see which contacts are available in their network. TrueCaller's free version offers basic blocking; a premium version adds features like call recording and advanced spam filtering. The app works on both iOS and Android.

RoboKiller uses artificial intelligence to identify spam calls based on patterns. The app can even answer spam calls with recordings that waste the scammer's time, making your number less profitable to target. RoboKiller offers a free trial and then charges a monthly subscription, typically around $3 to $4 per month.

Your phone carrier may offer native call-blocking tools. AT&T Call Protect, Verizon Call Filter, T-Mobile Scam Shield, and similar services vary by carrier. Many offer basic versions free to all customers, with premium features available for additional fees. Contact your carrier directly to learn what tools come with your plan.

When choosing an app, consider privacy. Review what data the app collects and how it's used. Some apps require access to your contacts, call logs, and other information to function. Read reviews and check the app's privacy policy before installing. Also note that while these apps are generally reliable, no solution blocks 100% of junk calls.

Takeaway: Download one reputable third-party app like Nomorobo or TrueCaller and enable it alongside your phone's built-in features for layered protection. Most quality apps are free to try, so you can test which works best for you.

What to Do When You Receive a Junk Call

Even with precautions in place, some junk calls will get through. How you respond matters for your safety and for helping authorities combat the problem.

Do not answer calls from unknown numbers, especially if you're not expecting a call. Scammers use multiple tactics to get you to pick up. They may spoof a number similar to yours, hoping you'll answer thinking it's local. They may claim urgency—saying your account has been compromised, your Social Security number is being investigated, or there's a package waiting. Legitimate companies rarely call unexpectedly about account problems or threats. When in doubt, hang up and call the official number listed on your bank statement, the company's website, or your tax documents.

If you do answer by mistake, listen for a few seconds. Scammers often use automated messages or pause before connecting to a live person, wasting your time. Simply hang up. You don't owe the caller an explanation or courtesy.

Never provide personal information over the phone, especially to unsolicited callers. This includes your Social Security number, bank account numbers, credit card numbers, PIN codes, passwords, or addresses. Legitimate organizations will not ask for sensitive data via unsolicited calls. If you're uncertain, ask the caller to send information in writing or to provide a callback number. Then hang up and call the official number yourself to verify the message.

If a call is clearly a scam, report it. The FTC accepts complaints at ReportFraud.ftc.gov. You can report calls to your phone carrier through their app or website. The FCC also collects spam complaints through their Consumer Complaint Center. If the call involved a threat or attempt to defraud you, you can file a report with local law enforcement, though for financial fraud, the FTC report is typically more useful.

Block the number immediately after hanging up. Add it to your phone's blocked list, report it as spam in your call-blocking app, and consider adding it to the FTC's Do Not Call list (though this list has limitations for scam calls originating from outside the U.S.).

Takeaway: If a call feels suspicious—especially