How to Block Spam Calls and Robocalls on Your Phone (2026 Guide)

Unwanted calls have become one of the most persistent digital nuisances of the decade. From automated sales pitches to sophisticated phishing scams, spam calls and robocalls interrupt your day, waste your time, and in the worst cases, drain your bank account. The good news: you have more tools than ever to shut them down. This guide walks you through exactly how to block spam calls and robocalls on your phone, using built-in features, carrier services, and third-party apps that actually work.

What Are Spam Calls and Robocalls?

A spam call is any unwanted call from a party you did not authorize to contact you, typically for marketing, scam, or fraud purposes. A robocall is a subset of spam calls that uses an automated dialer and pre-recorded or AI-generated voice messages to reach thousands of numbers at once.

Not all automated calls are illegal. Legitimate robocalls include appointment reminders from your doctor, school closure alerts, and emergency notifications. Illegal robocalls, however, are unsolicited marketing or scam attempts that violate telecom regulations in most countries, including the U.S. TCPA, the UK's PECR, and the EU's ePrivacy Directive.

Common Types of Spam Calls to Watch For

• Neighbor spoofing: Calls that appear to come from a number with your area code to trick you into answering.
• Impersonation scams: Callers pretending to be from the IRS, tax authorities, banks, or tech support companies.
• One-ring (Wangiri) scams: A single ring designed to make you call back a premium-rate number.
• Warranty and insurance scams: "Your car's extended warranty is about to expire."
• AI voice clones: A newer threat where scammers use short clips of real voices to impersonate family members.

How to Block Spam Calls on iPhone

Apple provides several native tools to filter and silence unknown callers without installing anything extra.

1. Silence Unknown Callers

1. Open the Settings app.
2. Scroll down and tap Apps, then Phone (on iOS 18 and later).
3. Tap Silence Unknown Callers.
4. Toggle the feature on.

Calls from numbers not in your contacts, recent outgoing calls, or Siri suggestions will be silenced and sent to voicemail. You'll still see them in your recent calls list, so you can return legitimate ones.

2. Block Individual Numbers

1. Open the Phone app and tap Recents.
2. Tap the small "i" next to the number you want to block.
3. Scroll down and tap Block this Caller.

3. Enable Call Filtering Extensions

iOS supports third-party call filtering apps like Hiya, Truecaller, and Robokiller. Once installed, go to Settings > Apps > Phone > Call Blocking & Identification and enable the app.

How to Block Spam Calls on Android

Android handling varies slightly by manufacturer, but Google's Phone app (the default on Pixel and many other devices) includes powerful spam protection.

1. Turn On Caller ID and Spam Protection

1. Open the Phone app.
2. Tap the three-dot menu and choose Settings.
3. Select Caller ID & spam.
4. Toggle on See caller and spam ID and Filter spam calls.

2. Enable Call Screen (Pixel Devices)

Google's Call Screen feature uses on-device AI to answer suspicious calls, ask the caller to identify themselves, and provide you with a real-time transcript. You can then choose to answer, mark as spam, or hang up. On supported Pixel phones:

1. Open Phone > Settings > Spam and Call Screen.
2. Tap Call Screen and enable Automatically screen for unknown numbers.

3. Block a Specific Number

1. Open Recents in the Phone app.
2. Long-press the number.
3. Tap Block / report spam.

Carrier-Level Blocking Services

Your mobile carrier can stop many spam calls before they ever reach your device. Most major carriers now offer free spam protection by default, with premium tiers for advanced filtering.

Carrier	Free Service	Premium Service	Approx. Price
Verizon	Call Filter	Call Filter Plus	$3.99/month
AT&T	ActiveArmor	ActiveArmor Advanced	$3.99/month
T-Mobile	Scam Shield	Scam Shield Premium	$4.00/month
EE (UK)	Spam Shield	Included in plan	Free
Vodafone (UK/EU)	Secure Net	Secure Net Premium	£1.00/month

To activate, log in to your carrier's app or website, find the security or call-blocking section, and enable it. Premium tiers usually add features like reverse number lookup, custom block lists, and voicemail-to-text with spam flagging.

Best Third-Party Apps to Block Spam Calls

If native and carrier tools aren't enough, dedicated apps use crowdsourced databases of millions of reported numbers to identify and block unwanted calls automatically.

Top Apps Compared

App	Platforms	Key Feature	Free Tier	Paid Plan
Truecaller	iOS, Android	Largest caller ID database	Yes (with ads)	$3.99/month
Hiya	iOS, Android	Clean interface, works with Samsung	Yes	$3.99/month
Robokiller	iOS, Android	Answer bots waste scammers' time	7-day trial	$4.99/month
Nomorobo	iOS, Landlines	Excellent for landlines	Free for landlines	$1.99/month mobile
YouMail	iOS, Android	Visual voicemail + blocking	Yes	$5.99/month

Pros and Cons of Third-Party Apps

Pros:

• Massive crowdsourced spam databases updated in real time
• Automatic blocking without manual effort
• Reverse lookup to identify unknown callers
• Some offer answer bots that waste scammers' time

Cons:

• Most require access to your contacts and call log
• Free tiers often show ads or share anonymized data
• Subscription fees add up over time
• Occasional false positives on legitimate calls

Register With Your National Do Not Call List

Government registries won't stop scammers who ignore the law, but they cut down on legitimate telemarketing calls significantly.

• United States: Register free at donotcall.gov. Telemarketers must stop calling within 31 days.
• United Kingdom: Sign up with the Telephone Preference Service (TPS) at tpsonline.org.uk.
• Canada: Use the National DNCL at lnnte-dncl.gc.ca.
• Australia: Register at donotcall.gov.au.
• India: Activate DND through your carrier or TRAI's website.

How to Report Spam and Robocalls

Reporting helps regulators track patterns and pursue enforcement. Every report also feeds crowdsourced databases used by call-blocking apps.

1. In your Phone app: Long-press the number and tap "Report as spam."
2. To your carrier: Forward spam texts to 7726 (SPAM) in the U.S., U.K., Canada, and Australia.
3. To regulators: File complaints with the FTC (reportfraud.ftc.gov), FCC (fcc.gov/complaints), Ofcom (UK), or CRTC (Canada).

Protect Yourself Beyond Call Blocking

Blocking calls treats symptoms; reducing how often your number gets sold or leaked treats the cause. Here are practices that limit exposure.

1. Stop Giving Out Your Real Number

Use a secondary number for online forms, deliveries, and one-time signups. Services like Google Voice, Apple's Hide My Email (for email), and prepaid burner apps give you disposable identities.

2. Be Careful With Links in Texts and Emails

Many phone number leaks start with phishing sites collecting your details. Before clicking a shortened link, hover over it or use a link preview tool to see the real destination. If you share links yourself, use a reputable shortener that offers analytics and safety checks. Our own Lunyb URL shortener provides link management with abuse monitoring, which is worth reviewing if you handle campaigns or send links professionally. For a broader comparison, see our 2026 buyer's guide to URL shorteners.

3. Opt Out of Data Broker Databases

Data brokers like Spokeo, Whitepages, and BeenVerified sell your phone number to marketers. Services such as DeleteMe, Kanary, and Incogni automate removal requests across hundreds of brokers for a yearly fee.

4. Review App Permissions

Many free apps request contacts and phone permissions they don't need. Go through your phone settings quarterly and revoke access from anything that doesn't require it.

5. Use Encrypted DNS and Private Browsers

Enabling encrypted DNS (like Cloudflare's 1.1.1.1 or NextDNS) on your device prevents your browsing and app traffic from being intercepted or sold, which indirectly reduces how easily your phone number can be tied to your online activity.

What to Do If You Answer a Spam Call

Even careful people get caught off guard. Here's how to react in the moment.

1. Don't say "yes." Some scams record your voice to authorize fraudulent charges. Answer with "Hello?" or "Who is this?" instead.
2. Don't press any buttons. "Press 1 to be removed" often confirms you're a live target and puts you on more lists.
3. Hang up immediately if the caller pressures you, asks for personal information, or requests payment in gift cards or crypto.
4. Verify independently. If a caller claims to be from your bank, hang up and call the number on the back of your card.
5. Report the number through your phone's built-in spam reporting tool.

The Future of Robocall Blocking

Regulators and carriers are deploying protocols like STIR/SHAKEN in North America and CLI authentication in Europe to verify that a call's caller ID hasn't been spoofed. AI-driven on-device screening, like Google's Call Screen and Apple Intelligence-powered filters, is expected to identify scam patterns in real time based on conversation content, not just the number. Expect fewer spam calls to reach you in the coming years, but also expect scammers to lean harder on AI voice cloning and SMS-based fraud.

Frequently Asked Questions

Does *61 or *77 actually block spam calls?

These older codes work on some landlines to block the last incoming number (*61) or reject anonymous calls (*77), but they're inconsistent on mobile networks. Use your phone's built-in block feature or a carrier app instead for reliable results.

Why do I still get spam calls after registering with the Do Not Call list?

The Do Not Call registry only binds legitimate telemarketers who follow the law. Scammers and overseas robocallers ignore it entirely. Combine registry signup with carrier filtering and a call-blocking app for best results.

Are call-blocking apps safe to use?

Reputable apps like Hiya, Truecaller, and Nomorobo are generally safe, but they require access to your contacts and call log to work. Read the privacy policy, choose paid tiers when possible to avoid data monetization, and stick to apps with millions of verified downloads.

Can spam callers hack my phone just by calling?

Simply answering a call cannot install malware or take over your phone. The real danger is social engineering: being tricked into revealing passwords, one-time codes, or financial details. Never share sensitive information with someone who called you unexpectedly.

What's the fastest way to stop spam calls right now?

Enable "Silence Unknown Callers" on iPhone or "Filter spam calls" in Google's Phone app on Android. This single toggle blocks the majority of unwanted calls immediately without any downloads or subscriptions. Then activate your carrier's free spam protection for a second layer.

Final Thoughts

Blocking spam calls in 2026 isn't about one silver bullet: it's about layering protections. Start with your phone's built-in silencing tools, enable your carrier's free spam service, register with your national do-not-call list, and add a trusted third-party app if calls still slip through. Combine this with smart habits, like protecting your number online and never engaging with suspicious callers, and you'll take back control of your phone in a matter of minutes.