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How to unmask a No Caller ID call (in the US)
How to unmask a No Caller ID call (in the US)
Updated over 3 months ago

If you’re here, you’re probably looking for a reliable and quality app to identify private calls on your iPhone or Android device.

Identifying a Private Call

So, how do you identify a private call? Why is it useful? When does it work, and when does it not? The field of identifying private calls is complex, and in recent years, many services have emerged, some good and some less so. MaskOff is currently the leading app in the world for identifying private calls. We operate in the US, UK and more.

What is a Private Call?

A private call is an incoming call where the caller ID (the phone number) does not appear on the phone’s screen. It will appear in the call log with the text "private call," "unknown call," "unknown number," "private number," etc. The name that appears on the screen varies based on the cellular company’s settings; some may call it an unknown call, private call, hidden number, etc.

Is There a Difference Between a Private Call and an Unknown Call?

As you may have understood, there is no real difference between a private call and an unknown call. They all come from a hidden or blocked number, and the difference is merely a naming difference.

Who Calls from a Private Number? Who Uses It?

Usually, a private call comes from someone who doesn’t want you to know their identity. Based on our experience with users, private calls often come from unwanted sources, mainly from harassers, spam marketing companies, ex-partners who continue to harass, criminal elements, and more.

How to Identify a Private Call

After this introduction about private numbers, let’s dive into the main guide and learn how to identify a private call - discover a hidden number!

Step 1: Download the App

Download the MaskOff app to the device where you want to identify private calls.

Link for Android:

Link for iPhone:

IMPORTANT: (IOS 17.0+)

To enable MaskOff to unmask unknown calls and identify the caller and their reason, the Live Voicemail feature must be turned off. Follow these steps:

  1. Open your iPhone Settings app.

  2. Scroll down and tap on Phone.

  3. In the Calls section, tap on Live Voicemail.

  4. Switch the Live Voicemail toggle to the off position.

Note: For users with iOS 17 and up, turning off Live Voicemail is necessary for MaskOff to function properly.

Step 2: Register for the App

After clicking "Sign Up," a registration screen will open where you will enter the phone number to which you will receive the private call and your cellular company.

We currently support AT&T, T-Mobile, Verizon, Sprint, MetroPCS To unmask blocked calls, Conditional Call Forwarding is necessary. If your carrier does not provide this feature, MaskOff will not be able to function on your device.

Step 3: Enable Call Forwarding

After registration, you will need to enable call forwarding on busy.

The system will forward any private call you receive when you reject the call – essentially, any private call you receive and reject will be forwarded to us – we will identify the private number and return it to you.

For iPhone:

Enable call forwarding for iPhone

  • Click "Enable Forwarding"

  • A small popup will appear to call the number – click it (this is the forwarding code – a shortcut to enable call forwarding on busy).

Success Message

The call should beep and then disconnect, or display a message Setting Activation Succeeded - If you receive a message like "Call forwarding has been successfully set up when busy" (by message or by calling – continue – your device supports call forwarding!

Failed Message:

If you receive a failed message like this:

Solution (Disable Wifi Calling):

Please go to your iPhone Settings -> click Phone -> than turn OFF the WiFi Calling.

Than try again re forward.

If you still get again a failed message this means your carrier isn't giving you permission to change your Conditional Call Forwarding from your device. To resolve this, you will need to contact your carrier directly to enable Conditional Call Forwarding.

For Android:

Enable call forwarding for Android

  • Click "Enable Forwarding"

  • Give the app permission to perform the forwarding automatically.

If you receive a message like "Call forwarding has been successfully set up" – continue – your device supports call forwarding!

If you receive a failed message, please contact our customer service for a solution (available on WhatsApp).

Step 4: Choose a Private Identification Package

Each package comes with a 3-day free trial – you can cancel the package anytime, even before the 3 days are up, so you can test and see that everything works properly and the app identifies private numbers.

Step 5: Congratulations, you’re done! 🎉🎊🎉🎊

What’s next?

Step 6: Receiving a Call from a Private Number? 📲📞

When you receive a call from a private or blocked number, simply reject it, and we will identify the number and display it in the app.

Remember, you must reject the call for it to be identified!

For any other issues, the MaskOff support team is available to resolve any problems.

Available on WhatsApp here Good luck and enjoy using the app! 😊

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