How to block unknown calls on Android and iPhone

Receiving calls from unknown numbers can be more than just a nuisance: they're often telemarketing, phone scams, or spam . Blocking these numbers protects your privacy , prevents distractions, and reduces the risk of falling victim to fraud. Both Android and iPhone offer built-in call screening tools to keep your line more secure.

Furthermore, the frequency of unwanted calls has increased due to automated services and aggressive marketing programs. Therefore, learning how to block these calls is a simple but effective way to protect your time and safety.

Most Android phones include options to block unknown or private numbers directly from the phone app:

1. Open the Phone app on your device.
2. Tap the three dots in the top right corner and select Settings .
3. Look for the Call Blocking or Blocked Numbers section.
4. Activate the Block calls from unknown numbers option.

When you activate this feature, your phone will automatically reject any calls from numbers not saved in your contacts list.

If you receive repeated calls from a particular number:

1. Go to the recent calls list in the phone app.
2. Press and hold the number you want to block.
3. Select Block number or Add to block list .

This ensures that neither calls nor messages reach your device.

There are reliable apps like Truecaller , Hiya , or Call Blocker that automatically identify and block spam calls . These apps also offer reports on blocked calls , which helps you keep track of calls more efficiently.

iPhone has an option that automatically silences calls from unsaved numbers :

1. Open Settings on your iPhone.
2. Go to Phone > Silence Unknown Calls .
3. Activate this option.

When enabled, calls from numbers not in your contacts, emails, or recent messages are sent directly to voicemail , but appear in your call history.

To block repeat calls from a specific number:

1. Open the Phone app and go to Recents .
2. Tap the i icon next to the number you want to block.
3. Select Block this contact .

This action blocks calls, texts, and FaceTime from that particular number.

The iPhone also allows you to install third-party apps that automatically screen calls . Some of the most popular are Hiya , RoboKiller , and Nomorobo , which identify spam numbers and block calls before they reach your phone.

• Do not answer calls from unknown numbers if you suspect they may be scams.
• Report suspicious numbers to your carrier or through spam-blocking apps.
• Keep your operating system up to date , as new versions often include security improvements and call filters.
• Use passwords or biometric unlocking to protect your device from unauthorized access.

Blocking unknown callers on Android and iPhone is a key step in protecting your time, privacy, and security . Whether using native phone features or third-party apps, these tools can help prevent interruptions and potential fraud . Enabling these options is simple and ensures that only important and familiar numbers can reach you, improving your everyday phone experience.