Stop spam calls, how to stop spam calls, block spam calls, stop robocalls

If you want to stop spam calls for good, you’re not alone. Robocalls about car warranties, fake IRS threats, “your package couldn’t be delivered” and health insurance offers hit American phones every single day. A national survey found that 92% of Americans reported receiving spam calls, and the median loss from a phone scam is nearly $1,500.

The good news: your iPhone or Android phone, your carrier and the federal government all give you free tools to block most of them. This guide shows you exactly how to set them up, step by step.

To stop spam calls, turn on your phone’s built-in spam filter, install your carrier’s free blocking app, and add your number to the National Do Not Call Registry. On iPhone, go to Settings → Apps → Phone → Screen Unknown Callers. On Android, open the Phone app → ⋮ → Settings → Caller ID & spam and turn on Filter spam calls. Then install AT&T ActiveArmor, Verizon Call Filter or T-Mobile Scam Shield.

The 3-layer defense at a glance:

1. Your phone: built-in call screening and spam filters
2. Your carrier: free network-level spam blocking apps
3. The government: the Do Not Call Registry and FTC reporting

Why am I getting so many spam calls?

Spam calls are cheap to make. Scammers use computers to dial thousands of numbers a minute, often from overseas. Here’s why your phone keeps ringing:

• Spoofing: scammers fake the caller ID to show a local number or a real company’s name, so you’re more likely to answer.
• Data leaks: your number may have been exposed in a data breach or sold by a data broker.
• Answering once: picking up or pressing a button tells robocallers your number is active, which can lead to more calls.
• Online forms: sweepstakes, quote requests and shopping sign-ups often share your number with marketers.

Important: If you answer a robocall, hang up. The FTC advises not pressing any buttons “to be removed from the list”, because it can lead to even more calls.

How to stop spam calls on iPhone

Step 1: Turn on Call Screening (iOS 26)

Apple’s newest spam fighter, Call Screening, arrived in iOS 26 and works on iPhone 11 and later. When an unknown number calls, your iPhone answers for you, asks the caller for their name and reason for calling, and shows you a live transcript. You decide whether to pick up.

1. Open Settings.
2. Scroll down and tap Apps, then tap Phone.
3. Under Screen Unknown Callers, choose one option:
   • Never: unknown numbers ring normally.
   • Ask Reason for Calling: turns on Call Screening (recommended for most people).
   • Silence: unknown numbers go straight to voicemail without ringing.

Tip: Choose Ask Reason for Calling if you get calls from doctors, schools, delivery drivers or job recruiters. Choose Silence if you only want calls from saved contacts.

Step 2: Turn on call filtering

iOS 26 can also sort calls from unknown numbers and carrier-flagged spam into separate lists, so they don’t clutter your Recents.

1. Go to Settings → Apps → Phone.
2. Turn on the Unknown Callers and Spam filtering options.
3. To mark a real caller as safe, open the Phone app, tap the Filter button, open Unknown Callers, and tap Mark as Known.

Step 3: Block a specific number

1. Open the Phone app and tap Recents.
2. Tap the ⓘ next to the number.
3. Scroll down and tap Block Caller, then confirm.

Step 4: Connect a spam-blocking app

After you install your carrier’s app or a third-party blocker (see below), allow it to work with your iPhone:

1. Go to Settings → Apps → Phone → Call Blocking & Identification.
2. Turn on the app you installed.

On an older iPhone (iOS 17 or 18)? Go to Settings → Phone → Silence Unknown Callers and turn it on.

How to stop spam calls on Android

Menu names vary slightly by brand and Android version, but these are the most common paths.

Google Phone app (Pixel, Motorola and many others)

1. Open the Phone app.
2. Tap the three dots (⋮) in the top right, then Settings.
3. Tap Caller ID & spam (on some phones: Spam and Call Screen).
4. Turn on See caller & spam ID.
5. Turn on Filter spam calls so suspected spam never rings.

Pixel owners: In the same menu, turn on Call Screen. Google Assistant can answer unknown calls and screen them automatically, so you only hear from real people.

Samsung Galaxy phones

1. Open the Phone app.
2. Tap the three dots (⋮), then Settings.
3. Tap Caller ID and spam protection and turn it on (tap Agree if asked).
4. Turn on Block spam and scam calls, then choose Block all spam and scam calls or high-risk calls only.

Samsung’s protection, called Smart Call, uses the Hiya spam database. It may not be available on every carrier or model.

Block a specific number on Android

1. Open the Phone app and go to Recents.
2. Long-press the number (or tap it).
3. Tap Block or Block/report spam.

Reporting a call as spam also helps protect other users, because it trains the spam database.

Use your carrier’s free spam blocker

All major U.S. carriers offer free apps that block spam at the network level, often before your phone even rings. Install the one for your carrier:

Features and prices change, so check your carrier’s website for current details.

Add your number to the Do Not Call Registry

The National Do Not Call Registry is a free service run by the Federal Trade Commission (FTC). It stops sales calls from legitimate companies that follow the law. You can register home and cell phone numbers.

How to register

1. Go to DoNotCall.gov and click Register Your Phone, or call 1-888-382-1222 from the phone you want to register.
2. Enter your phone number (you can register up to 3 at a time online) and your email address.
3. Click the confirmation link in the email to finish.

What the registry does and doesn’t do

• It does: stop sales calls from real companies that follow the law, and give you the right to report them if they keep calling.
• It doesn’t: block calls. Scammers ignore the registry completely, which is why you still need the phone and carrier filters above.
• It doesn’t cover: charities, political groups, debt collectors and surveys, which may still call.

How to report unwanted calls

• Unwanted sales calls (no money lost): report at DoNotCall.gov. Wait until your number has been on the registry for 31 days.
• Lost money or shared personal information: report at ReportFraud.ftc.gov right away.
• Include the number on your caller ID (even if it looks fake) and any number you were told to call back. The FTC uses this data to track down illegal callers.

Best third-party spam call blocker apps

For most people, the phone’s built-in filter plus the free carrier app is enough. If spam still gets through, these apps add another layer:

• Hiya: clean, free caller ID that labels calls as Scam Risk, Telemarketer or Survey. Auto-blocking requires Premium.
• RoboKiller: paid app with aggressive blocking and “answer bots” that waste scammers’ time.
• Truecaller: the largest global caller ID database, useful if you get calls from other countries.

Quick guide: which setting should you use?

Common phone scams to watch out for

• Fake IRS or Social Security calls: threats of arrest or suspended benefits. Government agencies don’t call demanding immediate payment.
• Car warranty calls: “your vehicle’s extended warranty is about to expire.”
• Bank fraud alerts: callers pretending to be your bank, asking you to “verify” your account or read a code.
• Package delivery scams: fake USPS, UPS or Amazon calls about a missed delivery.
• Family emergency scams: someone pretending to be a grandchild in trouble who needs money fast. Scammers may even use AI to copy a loved one’s voice.

Golden rule: Never give personal information, passwords or one-time codes to anyone who calls you. Hang up and call the company back using the number on its official website or the back of your card.

Frequently asked questions

How do I stop spam calls for free?

Turn on your phone’s built-in spam filter (Call Screening on iPhone, Filter spam calls on Android), install your carrier’s free app (AT&T ActiveArmor, Verizon Call Filter or T-Mobile Scam Shield), and register your number at DoNotCall.gov. Together, these free tools block or silence most spam calls.

Does the Do Not Call Registry actually work?

It works against legitimate telemarketers, who must stop calling registered numbers. It doesn’t stop scammers, because they ignore the law. That’s why you should combine it with call-blocking tools on your phone and from your carrier.

Why do spam calls show my own area code?

This is called “neighbor spoofing.” Scammers fake caller ID to show a number that looks local, because people are more likely to answer. Carrier spam filters can spot many spoofed calls.

Will silencing unknown callers make me miss important calls?

Silenced calls still go to voicemail and show in your call history, so you won’t lose them. If you worry about missing calls, use iPhone’s Ask Reason for Calling or Pixel’s Call Screen instead. They let real callers explain who they are.

Should I answer and say “stop calling” to robocalls?

No. Answering, speaking or pressing buttons can confirm your number is active and lead to more calls. Let unknown calls go to voicemail, then block and report the number.

How do I stop spam text messages too?

Forward spam texts to 7726 (which spells “SPAM”) to report them to your carrier, then delete them. On iPhone, open Settings → Apps → Messages and turn on the unknown-sender filtering option. On Android, turn on Spam protection in Google Messages settings.

Key takeaways

• Use three layers: phone settings, your carrier’s app, and the Do Not Call Registry.
• On iPhone with iOS 26, set Screen Unknown Callers → Ask Reason for Calling.
• On Android, turn on Filter spam calls (Google) or Block spam and scam calls (Samsung).
• Install your carrier’s free spam-blocking app.
• Never press buttons or share codes on unknown calls. Hang up, block and report.

Final thoughts

You can’t make spam calls disappear completely, because scammers keep changing numbers. But with your phone’s call screening, your carrier’s free blocker and the Do Not Call Registry working together, you can stop the vast majority before they ever interrupt you. Take 10 minutes today to set them up, and help your parents or grandparents do the same. They’re often the main targets.

Which spam calls bother you the most? Tell us in the comments, and bookmark CK Guru for more simple tech fixes.

Sources

• FTC: National Do Not Call Registry FAQs
• DoNotCall.gov
• Samsung: Block spam calls with Smart Call
• U.S. PIRG: Spam call and carrier protection report