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

Spam calls and robocalls have become one of the most persistent annoyances of modern life. From fake IRS scams to robotic warranty pitches, billions of unwanted calls flood phones every month worldwide. The good news: you can dramatically cut down on these calls using a mix of built-in phone settings, carrier-level filters, government registries, and smart habits to protect your number. This guide walks you through everything you need to know about how to block spam calls on iPhone, Android, and even landlines.

What Are Spam Calls and Robocalls?

Spam calls are unwanted phone calls made for marketing, scamming, or harassment purposes. Robocalls are a subset of spam calls that use automated dialing systems to deliver pre-recorded messages to thousands of numbers per minute. Not all robocalls are illegal — appointment reminders and emergency alerts are legitimate — but most that reach your phone uninvited are violations of telecom regulations.

Common Types of Spam Calls

• Robocalls: Pre-recorded marketing or scam messages.
• Spoofed calls: Calls that fake a local or trusted number to trick you into answering.
• Phishing (vishing) calls: Scammers impersonating banks, tax agencies, or tech support.
• Telemarketing calls: Real humans trying to sell products or services.
• Wangiri ("one-ring") scams: Calls that hang up quickly hoping you call back a premium-rate number.

How to Block Spam Calls on iPhone

Apple offers several built-in tools to silence unknown callers, block specific numbers, and integrate third-party spam-detection apps. Here is the step-by-step process.

1. Silence Unknown Callers

1. Open Settings on your iPhone.
2. Scroll down and tap Phone.
3. Tap Silence Unknown Callers.
4. Toggle the switch on.

Calls from numbers not in your contacts, recent outgoing calls, or Siri Suggestions will be sent straight to voicemail. You will still see them in your call log in case a legitimate caller tries to reach you.

2. Block Individual Numbers

1. Open the Phone app and tap Recents.
2. Tap the i (info) icon next to the number you want to block.
3. Scroll down and tap Block this Caller.
4. Confirm by tapping Block Contact.

3. Enable Carrier Spam Filters

Major carriers like AT&T, Verizon, T-Mobile, Vodafone, and others offer free network-level filtering apps (AT&T ActiveArmor, Verizon Call Filter, T-Mobile Scam Shield). Download the app for your carrier, sign in with your phone number, and enable the highest level of automatic blocking.

4. Use a Third-Party Call-Blocking App

Apps like Truecaller, Hiya, Robokiller, and Nomorobo maintain massive crowd-sourced databases of known spam numbers. To activate one on iPhone:

1. Install the app from the App Store.
2. Open Settings > Phone > Call Blocking & Identification.
3. Toggle the app on.

How to Block Spam Calls on Android

Android offers similar protections, though the exact menus vary by manufacturer (Samsung, Google Pixel, Xiaomi, etc.). The Google Phone app, used on Pixel and many other devices, includes a powerful built-in spam filter.

1. Turn On Caller ID and Spam Protection

1. Open the Phone app.
2. Tap the three-dot menu and choose Settings.
3. Tap Caller ID & spam (or Spam and Call Screen on Pixel).
4. Toggle on See caller and spam ID and Filter spam calls.

2. Use Google's Call Screen (Pixel)

Pixel users can let Google Assistant answer suspicious calls on their behalf, ask who is calling, and transcribe the response in real time. Enable it under Settings > Call Screen in the Phone app.

3. Block a Number Manually

1. Open the Phone app and go to Recents.
2. Long-press the unwanted number.
3. Tap Block / report spam.
4. Confirm.

4. Samsung Smart Call

Samsung devices include Smart Call, powered by Hiya. Go to Phone > Settings > Caller ID and spam protection and enable both options. Suspicious calls will be labeled before you answer.

How to Stop Robocalls on a Landline

Landlines are not immune to spam — in many regions they are the primary target for robocallers. Options include:

• Nomorobo for landlines: A free service for VoIP-based landlines that uses simultaneous-ring technology to hang up on known robocallers after the first ring.
• Call-blocking devices: Hardware like CPR Call Blocker or Sentry plugs between your phone and wall jack, blocking up to 10,000+ numbers.
• Carrier services: Many home-phone providers offer anonymous call rejection and per-number blocking — call customer service to enable them.

Register on National Do Not Call Lists

Most countries operate a national registry that legitimate telemarketers must respect. Registration is free and takes minutes.

Country	Registry	Website
United States	National Do Not Call Registry	donotcall.gov
United Kingdom	Telephone Preference Service (TPS)	tpsonline.org.uk
Canada	National DNCL	lnnte-dncl.gc.ca
Australia	Do Not Call Register	donotcall.gov.au
India	DND Service (TRAI)	Via SMS to 1909
EU	Varies by country	Check national regulator

Note: registering will not stop scammers (who already ignore the law), but it eliminates a large volume of legitimate telemarketing calls.

Comparison of Top Call-Blocking Apps in 2026

App	Best For	Free Tier	Premium Price	Platforms
Truecaller	Caller ID + global spam database	Yes (with ads)	~$2.49/mo	iOS, Android
Hiya	Lightweight, carrier-backed	Yes	~$3.99/mo	iOS, Android
Robokiller	Aggressive auto-blocking + answer bots	7-day trial	~$4.99/mo	iOS, Android
Nomorobo	Landlines + iOS users	Landline free	$1.99/mo mobile	iOS, landlines
YouMail	Voicemail + robocall blocking	Yes	~$5.99/mo	iOS, Android

Pros and Cons of Third-Party Apps

Pros:

• Large crowd-sourced databases catch new spam numbers quickly.
• Real-time caller ID for unknown numbers.
• Voicemail transcription and answer bots in premium tiers.

Cons:

• Require access to your contacts and call log, raising privacy concerns.
• Free tiers usually contain ads or limited blocking.
• Can occasionally flag legitimate calls as spam.

Protect Your Number From Getting on Spam Lists

The best long-term defense is preventing your number from being harvested in the first place. Spam dialers buy lists from data brokers, lead-generation forms, breached databases, and shady contest sign-ups.

Best Practices to Keep Your Number Private

1. Never enter your real number into unverified web forms. Use a secondary number (Google Voice, Hushed, or a carrier eSIM) for online sign-ups.
2. Use link redirection for outbound sharing. When you share a contact form or booking link, consider using a privacy-focused short link service like Lunyb so your raw destination URL and any embedded tracking are abstracted behind a clean, controllable link.
3. Opt out of data broker sites. Services like Spokeo, Whitepages, and BeenVerified list phone numbers publicly. Submit opt-out requests for each.
4. Avoid posting your number on social media or websites. Bots scrape these constantly.
5. Check breach exposure at sites like Have I Been Pwned to see if your number has leaked.
6. Be cautious with "free trial" sign-ups, which often resell your contact information.

What to Do If You Answer a Spam Call

Even careful people accidentally pick up spam calls. Here is how to minimize damage:

• Do not say "yes". Scammers record affirmative answers to authorize fake charges.
• Do not press any keys. Pressing "1 to be removed" confirms your number is active and invites more calls.
• Hang up immediately if the caller asks for personal data, payment, or remote computer access.
• Report the call to your national regulator (FTC in the US, Ofcom in the UK, ACMA in Australia).
• Block the number in your phone app afterward.

Recognizing Common Phone Scams in 2026

Scammers evolve constantly. Watch out for these prevalent 2026 schemes:

• AI voice-cloning scams: A caller mimics a family member's voice claiming an emergency. Always verify by calling the person back on a known number.
• Fake delivery notifications: Robocall claims a package is held; pressing 1 connects to a fraudster.
• Government impersonation: Tax agencies, social security offices, and police never demand immediate payment by phone or gift card.
• Bank fraud alerts: Caller pretends to be your bank and asks you to "verify" your account. Hang up and call the number on the back of your card.
• Tech-support scams: A robotic voice claims your computer is infected. Microsoft and Apple do not cold-call customers.

Bonus: Reduce Your Overall Digital Footprint

Spam calls are just one symptom of a larger problem: your personal data being scattered across the web. Reducing what attackers can find about you cuts spam at the source. Read our deeper guides on privacy-friendly tools — including our honest review of Lunyb for safer link sharing, and the best URL shorteners compared for 2026 if you regularly share links and want to keep your real destinations private.

Frequently Asked Questions

Does *61, *60, or *77 actually block spam calls?

These vertical service codes work on some landlines and carrier networks. *60 lets you add numbers to a block list, *61 blocks the last incoming caller, and *77 enables anonymous call rejection. They are useful for one-off blocks but cannot stop spoofed numbers, since each spam call uses a different fake caller ID.

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

The registry only stops legitimate telemarketers who follow the law. Scammers and overseas robocallers ignore it entirely. To stop those, you need carrier filters, the built-in "silence unknown callers" setting, or a third-party blocking app.

Is it safe to use call-blocking apps like Truecaller or Hiya?

They are generally safe but request broad permissions, including access to your contacts in some cases. Read each app's privacy policy carefully. If you are privacy-conscious, prefer carrier-native apps (Verizon Call Filter, T-Mobile Scam Shield) or built-in OS features over third-party tools.

Can spam callers steal money just by my answering?

Simply answering a call cannot drain your bank account. The risk comes from what you say or do during the call — providing personal information, confirming your identity, pressing keys, or following instructions to install software or transfer money. When in doubt, hang up.

What is the single most effective step to reduce spam calls?

Enable your phone's built-in "silence unknown callers" feature combined with your carrier's free spam-filtering app. Together, these two settings block the vast majority of robocalls without costing anything. Add a Do Not Call registration and good data hygiene for long-term protection.

Final Thoughts

Spam calls will probably never disappear entirely, but you can reduce them from dozens per week to nearly zero with the right combination of tools. Start with your phone's native settings, layer on your carrier's free filter, register with national do-not-call lists, and stay disciplined about where you share your number online. A few minutes of setup today will save you hours of interrupted calls all year long.