Monday, November 27, 2023
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How To Detect An Unknown Caller [3 Easy Ways]

Many people have been on the receiving end of spam calls or unwanted numbers, which generally are not saved on their mobile. 

This can be very frustrating, and you would certainly be looking for ways to put an end to that. 

There are several ways through which you can put an end to this, and we will be showing you those ways in today’s article.

First of all, we will look at how people can hide their phone numbers when they call you. 

You can do this easily due to the no ID feature. Making this type of call makes the person at the other end of the line see your call as an unknown call.

You have to dial *67, followed by the number you wish to call

This will then block your caller ID. This feature usually prevents people from tracking your number, although some people have instead been using it for different forms of nefarious activities. 

We advise our readers not to try any nefarious activities with this no ID feature and do so at your own risk.

Now, let us look at how we can unmask an unknown caller. Once you have found them, you will be able to block them from calling you.

Calling The Phone Company

man making call illustrator

Phone companies usually have a record of all your previous calls, and it is possible that you can find the identity of the unknown caller from them. 

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Call your phone company and then tell them of the unwanted, unknown calls you receive. 

The phone company will then enable a service that will track the caller’s identity when they call you again. 

However, not all phone companies offer this kind of service to their customers. 

You should still call your phone company and ask them if they offer the service.


Trapcall is one of the ways people can unmask unknown callers and block those numbers. 

The app allows you to unmask any number and their address and photo of their caller ID. 

You can then put the numbers on a blacklist which will then disconnect them from being able to call you. 

They will typically receive a message saying that their number has been disconnected or is not in service.

You can use Trapcall by subscribing to their service on their website by signing up. 

You will then be asked to activate the Trapcall service on your mobile phone. 

It does not take very long, and the whole procedure can be done in minutes. 

Trapcall is available for Android and IOS devices. They also offer a free trial version before you can get real serious with them.


This is a popular app with well over 150 million users worldwide used to unmask unknown callers. 

It is available on several platforms. You will need to check your app store to see if you can download it from there. 

We do not advise downloading from an untrusted source from Google.

This app allows you to find the identity of all unknown callers. A new version called Truemessenger was used to find the essence of unknown message senders.

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You can also block unknown numbers on your mobile phone. Phone manufacturers have made it possible for users to block numbers that they would like to.

If you are using an iPhone, here is how to block numbers on it.

  1. Go to the settings menu
  2. Scroll down and then select phone
  3. Switch ‘silence unknown callers’ off

If you are using an Android smartphone, here is how to block unwanted numbers.

  1. Go to the dialer
  2. Tap the vertical dots that you can find on the right-hand side
  3. Select settings
  4. Select block numbers
  5. Switch’ block unknown number callers’ on

How To Block Specific Numbers

When you can figure out an unknown caller’s number, you can easily block it with your phone.

  • iPhone users
  1. Go to the dialer and then locate the number you wish to block
  2. Tap on the ‘I,’ which has the circle around it near the number on the right
  3. Scroll down and then select ‘Block Caller.’
  4. The caller will then be sent a message that states that you cannot be receiving their calls.
  • Android users

For Android, the method depends on the type of smartphone you are using and the version of Android on the smartphone. However, most of them can be done with the following steps.

  1. Open the dialer and then go to or logs
  2. Tap on the specific phone number
  3. Select the ‘I’ within the circle
  4. Select ‘Block’ down the screen
  5. Now confirm it.

In Android, the user of the blocked number will not know that they have been blocked.

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So these are ways to detect unknown calls and methods through which you can block any phone that has been harassing you. 

Our readers are strongly advised never to use the unknown caller feature for any nefarious activities. 

Doing so is at your own risk should you have to deal with the law.

We hope that this article was beneficial.

Emmanuel Boakye Yiadom
Emmanuel Boakye Yiadom
Emmanuel is a tech blogger, cryptocurrency educator and can sometimes be found decorating cars because he is in love with arts. He also likes reading and blogging about what's happening in the tech world and loves to help people with their techs related issues in his free time.

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