How To Find out Who an Unknown Caller Is

Posted by Arch on April 20, 2019
How to Find out Who an Unknown Caller Is

If you are frequently on the receiving end of unwanted calls, and you know who the caller is, you can use your smartphone’s options to block that specific number. However, the problems start when someone is calling you from a masked, unknown number.

Since you don’t know what that number looks like, you can’t block it. But this article will show you everything you need to know in order to find out who that unknown caller is.

Masked Unknown Numbers

First, how do these people actually hide their phone numbers when they call you?

The answer is quite simple and it has been used for a long time, even before the age of smartphones.

Anyone can hide their number because of the No Caller ID feature. When you make this type of call, you appear as an Unknown Caller. All that it takes is entering a few digits.

Simply enter *67 before the number that you wish to call. This will automatically block your caller ID – that is, it will make it invisible to the person who is receiving the call.

The No Caller ID feature is usually used to prevent tracking. However, some misuse it for harassment and other illegal activities. That’s why you need to learn how to unmask the caller’s number.

The following section will show you how you can do that.

No Caller ID

Unmasking Unknown Numbers

Call Your Phone Company

Since phone companies have records of your previous calls, they usually provide their customers with the Anonymous Caller ID service. So how does this work?

Basically, this service automatically checks the authenticity of every call that you receive on your phone.

Let’s say someone tries to call you from an unknown or restricted number while this service is enabled. In order for the caller to proceed, they will have to unmask their number. Once the number is unmasked, you will be able to see it on your screen. To enable this service, simply call your telephone company and notify them that you are receiving unwanted calls from an unknown number.

Unfortunately, not all companies offer this service, but the only way to make sure is to call your provider and ask them about Anonymous Caller ID. If your provider supports the feature, the operator will ask you for the date and time when you received these calls. Additionally, they might need to know your name and address.

After that, the operator will try to unmask the number that has been calling you, and the feature should be enabled.

Use TrapCall

TrapCall is one of the most reliable services that people use to unmask and block unwanted numbers from calling ever again. This company has been providing this service since 2007.


The TrapCall app allows its users to:

  1. Unmask any phone number.
  2. Unmask the name, address and photo of a caller with No Caller ID turned on.
  3. Put these numbers on a blacklist, so that when they call again, they will hear a message telling them that your number has been disconnected or isn’t in service.
  4. Use automatic spam call blocking.
  5. Use incoming call recording, and more.

TrapCall signin

All that you need to do in order to use TrapCall is subscribe to them by signing up on their official website. After that, they will ask you to activate the service on your mobile phone.

The process usually lasts around 5 minutes and it is very easy to accomplish all of the required steps.

Once you have successfully activated the TrapCall service on your mobile phone, you will be able to unmask the numbers that are calling you and figure out who that person is.

When you receive a No Caller ID call, you need to decline it. After that, the call will be redirected to TrapCall. TrapCall will then unmask the caller and send you a notification with the exact number and additional info.

The TrapCall service works on both Android and iPhone smartphone devices. Unfortunately, this service isn’t available anywhere outside the United States of America.

The TrapCall service offers a free trial option for future users. You can test it all out by signing up here.

Block a Certain Number from Ever Calling Again

These two methods allow you to find out who is hiding behind those No Call ID calls. Once you figure out their numbers and identities, you will be able to easily block them by using your smartphone’s features.


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