Noah Reed

Published :

28 Jan 2026

How to block spam calls on iPhone?

Spam calls are frustrating when they interrupt work, family time or come through the chorus of a favourite song. We generally receive 2 to 3 spam calls on a daily basis.

You can block spam calls on an iPhone, enabling silence on unknown callers, using carrier-level spam protection, or the third party call blocking apps. Most of the spam calls are deceptive or even dangerous to your information.

It's essential to have some strategies to safeguard. In this article, I will discuss why you get spam calls and the methods to block spam calls on your iPhone.

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Why You're Getting Spam Calls?

Scammers get your number from data breaches, social media accounts or public records. Moreover, some data brokers sell the list of data, and scammers use automated dialers to call millions of people. If you answer the call, it confirms your number activation, and you become the primary target.

To avoid such calls, ensure not to answer the unauthorised or unknown contacts.

Method 1: Enable Silence Unknown Callers Feature

Here are the steps you can follow to enable the unknown caller features on your iPhone.

Open your iPhone Settings app.
Scroll to find the Apps button.
Choose the Phone from the apps list.
Look for the Screen Unknown Callers.
Select your preferred setting:
- Never
- Ask Reason for Calling
- Silence

Method 2:Block the Numbers Manually

Open the Phone application on your iPhone.
Click the Recents tab.
Tap the "i" info icon in front of the spam number.
Scroll down and click Block This Caller.
Tap it again to confirm Block Contact.

This method works effectively when the same scammer is calling repeatedly, or in cases of personal harassment. While blocking contacts is a great first step, you should also take control of your overall device security. For instance, knowing how to disable app tracking on Android or iPhone ensures that apps aren't leaking your personal info to data brokers in the first place.

Note: Spammers use the number spoofing technology using different numbers. In such a situation, this method alone will not work.

Method 3: Activate Carrier-Level Spam Protection

Your mobile service provider can also help you to stop the spam calls. For this ensure to identify your mobile service provider like AT&T and T-Mobile.

Open the App Store and download the carrier offical spam blocking app, such as T-Mobile Scam Shield, Verizon Call Filter, AT&T ActiveArmor.
Now setup the app on your device following the on screen instruction and allowing permissions.
Now, enable the spam filtering feature within the app.

After setting the spam filter, the carrier analyzes call patterns at the network level and blocks suspicious numbers before your mobile phone rings.

Method 4: Use eSIM to Protect Your Primary Number

It seems interesting that the digital eSIM technology contribute protect you from spamming. Before going through the details, here is an introduction to the eSIM card.

An eSIM is a digital chip integrated into the latest compatible devices that eliminates the need for a physical SIM. It is the travel-friendly technology that works to provide a flexible internet connection without international data roaming charges.

How does eSIM help block spam calls?

Use eSIM as a Burner Number

It works in a dual-SIM iPhone with an eSIM and a SIM card.

Buy an eSIM card from a reliable carrier for online sign-ups and social accounts.
Now you can keep your primary number private and give the eSIM number to websites and forms.
It is ideal to keep your number private.
If your number gets spammed, you can deactivate it.

Dual Number Management

Use your primary number for the reliable and trusted contacts.
Keep the eSIM number for the public activities.
You can also enable Silence Unknown Callers on the eSIM to avoid spamming.

eSIM Card is the trusted provider for spam protection

Many providers offer eSIM for international coverage, but I generally recommend the travellers, student and tech users an eSIM Card. The carrier stands out for its verified variety of data, voice and text eSIMs and the strict security measures.

eSIM Card is the perfect choice for individuals and businesses to access a secure cellular data connection. eSIM in your phone offers multiple security checks to avoid unauthorised or scammer access to your information.

Similarly, if you are worried about the eSIM prices, purchasing process, and setup, take it easy because the carrier guide you completely. You can buy the eSIM online from the official eSIMCard website or download the app for your iPhone.

The provider offers eSIM plans for 200+ destinations. You can buy your country's travel eSIM. Then the carrier will send you a QR code and activation code to set it up on your device.

How to add an eSIM on iPhone?

Go to your iPhone Settings app.
Scroll to click the Cellular button.
Now tap the Add eSIM.
Open your device camera and scan the QR code or manually enter the activation details.
In a dual-SIM phone, you can label the SIMs as Primary and Secondary lines.

Method 5: Install Third-Party Call-Blocking Apps

You can use the third party apps to block spam calls on iPhone. The well-known apps include Truecaller, RoboKiller and Hiya. These apps are not entirely free to use. After the trial, you need to purchase it for long-term usage.

How to setup the apps?

Download one of the apps from the App Store.
Sign up for the app and grant the necessary permissions.
Now open the Settings and move to the Phone app.
Click the Call Blocking &Identification.
Toggle to enable the chosen app.

Bonus Prevention Tips

Ensure to avoid answering the unknown numbers.
Avoid sharing your number on public social media accounts.
Ensure to keep your iOS updated to improve spam detection algorithms.
Use the eSIM number for the registration instead of the primary number.

Conclusion

We generally receive 2 to 3 spam calls daily. To avoid any fraudulent approach through these calls, it's ideal to block the spam calls on your iPhone. In the article, I have discussed different methods to avoid spam calls, like enabling silence unknown callers, using carrier-level spam protection and others.

Ensure to read all the methods, because not necessarily only a single method is enough for you. Use multiple methods to ensure 95% spam reduction.

FAQs

How to stop spam calls and spam texts on iPhone?

Avoid answering calls from unknown numbers. You can download the third-party apps or add your number to don’t call registry. Similarly, don’t answer the spam texts and avoid clicking the spam text links.

How to block spam calls on iOS 17?

Open the Settings app, click Phone and Call Blocking & Identification. Turn on the Spam or Silence Call. If the carrier supports it, your calls will be filtered by the provider.