Spam and robocalls keep getting worse. Billions of unwanted calls flood phones every month, and the scammers keep getting smarter — spoofed local numbers, fake bank alerts, even AI-cloned voices of people you know. The good news is that the defenses have improved too. Between built-in phone features, free carrier tools, and a few smart habits, you can cut spam calls down to a trickle. Here are eight methods that actually work in 2026.
1. Turn On Your Phone’s Built-In Spam Filtering
This is the single highest-impact step and it takes less than a minute. On Android, open the Phone app, tap Settings, then Spam and Call Screen, and enable “See caller and spam ID” plus “Filter spam calls.” On iPhone, go to Settings > Phone and turn on Silence Unknown Callers — calls from numbers not in your contacts go straight to voicemail without ringing. Most people who enable this one setting see unwanted calls drop by 80 percent or more overnight.
2. Register on the Do Not Call Registry — and Know Its Limits
Adding your number at donotcall.gov stops legitimate telemarketers, who are legally required to check the list (it takes about 31 days to take full effect). It will not stop scammers — criminals ignore the law — but it eliminates the legal-but-annoying sales calls, and it gives you solid grounds to report anyone who keeps calling after the grace period.
3. Use Your Carrier’s Free Spam-Blocking Tools
T-Mobile’s Scam Shield, AT&T ActiveArmor, and Verizon Call Filter are all free and can automatically identify or block suspected spam before your phone ever rings. The catch: many people have these features available but never turn them on. Open your carrier’s app or account portal, find the spam-blocking section, and set blocking to the most aggressive level you are comfortable with. Start with “identify and warn” if you are nervous about missing a real call, then tighten it later.
4. Let Your Phone Screen Unknown Callers for You
Google Pixel phones have the best tool here: Call Screen lets the Google Assistant answer unknown numbers and ask who is calling, showing you a live transcript. Scammers almost always hang up; real callers explain themselves. iPhone users get Live Voicemail, which transcribes messages in real time so you can pick up mid-message if it turns out to be important. Both features let legitimate callers through while filtering out the junk automatically.
5. Install a Reputable Call-Blocking App — Carefully
Apps like Hiya and Truecaller maintain enormous databases of reported spam numbers and can identify callers in real time, even ones your carrier misses. The trade-off is privacy: these apps typically need access to your contacts and call logs to work well. Read the privacy policy before installing, grant only the permissions the app genuinely needs, and skip any app with a history of selling user data. A well-chosen app plus your phone’s built-in filter is a powerful combination.
6. Never Engage: Don’t Answer, Don’t Call Back, Don’t Press Buttons
This is the habit that matters most. Answering a robocall tells the system your number is live, which puts you on more call lists. Calling back an unknown number can connect you to premium-rate scams or confirm your number is active. And pressing “2 to be removed” does nothing except prove a human is listening. Let every unknown call go to voicemail. Legitimate callers will leave a message; scammers will not.
7. Report Spam Calls — It Actually Helps
Forward spam texts to 7726 (which spells SPAM on the keypad) and report unwanted calls at reportfraud.ftc.gov. These reports feed the shared databases that carriers and blocking apps use to flag numbers, so your thirty seconds of effort makes the whole system smarter for everyone. On iPhone and Android you can also report junk right from the call log or messaging app.
8. Starve Scammers of Your Number
Every form, contest entry, and “free quote” page that collects your phone number is a potential leak. Scammers buy numbers in bulk from data brokers and breached marketing lists. Use a secondary number (like a free Google Voice number) for online forms and sign-ups, opt out of data-broker listings where you can, and never post your real number publicly on social media or marketplaces. The fewer lists your number appears on, the fewer calls you will ever receive.
Conclusion
No single trick stops every spam call, but layering two or three of these methods will cut the noise dramatically. Start with the free built-in options — your phone’s spam filter and your carrier’s blocking tools — and adopt the never-engage habit. That combination alone takes less than five minutes to set up and eliminates the vast majority of unwanted calls for good.