How to Unmask and Identify Unknown Callers with No Caller ID


Are you tired of receiving calls from unknown numbers with no caller ID? These calls can be frustrating, and sometimes even worrisome. In this article, we’ll guide you through the process of identifying these unknown callers, so you can finally put an end to those unwanted calls. We’ll discuss various techniques, tools, and resources that will help you unmask no caller ID numbers, ensuring your peace of mind.

No Caller ID Image On Phone

What is No Caller ID?

No Caller ID, also known as blocked or private number, refers to a call where the caller’s number is hidden from the recipient. These callers typically use different methods to conceal their phone number, making it difficult for the person receiving the call to identify who is on the other end.

Why Do People Hide Their Caller ID?

There are several reasons why someone might choose to hide their caller ID. Some individuals value their privacy and don’t want to share their phone number with others. Telemarketers and scammers also use this tactic to avoid detection and increase the likelihood of someone picking up their call.

How to Find Out Who’s Calling from a No Caller ID Number

1. Use a Call Unmasking Service

One of the most effective ways to reveal the identity of a no caller ID caller is to use a call unmasking service, such as TrapCall. These services work by unmasking blocked numbers and displaying the caller’s true identity. Most of these services require a subscription, but they can be a valuable tool in identifying unknown callers.

TrapCall unmask number

2. Conduct a Reverse Phone Lookup

Another method to uncover the identity of an unknown caller is to perform a reverse phone lookup using a reputable online directory, such as Whitepages or Spokeo. These directories allow you to enter the phone number and receive information about the caller, including their name, address, and more.

whitepages Interface to search phone numbers spokeo Interface to search unknown numbers

3. Use a Call-Blocking App

Call-blocking apps, such as Hiya or Truecaller, can help you identify and block unknown callers. These apps use a database of known spam and scam numbers to filter out unwanted calls. They can also provide caller ID information for numbers that are not in their database, helping you identify who’s calling.

4. Set Up Call Screening

Some phone carriers offer a call screening feature that requires callers to announce their name before the call is connected. This feature can help you identify unknown callers without needing to pick up the call. Check with your phone carrier to see if they offer this service.

How to Block No Caller ID Calls on Your iPhone

If you’re using an iPhone and want to block no caller ID calls, follow these steps:

  1. Open the “Settings” app.
  2. Scroll down and tap on “Phone.”
  3. Tap on “Silence Unknown Callers.”
  4. Toggle on the “Silence Unknown Callers” switch.

By enabling this feature, calls from unknown numbers will be silenced and sent directly to voicemail.

How to Block No Caller ID Calls on Your Android Phone

Blocking no caller ID calls on Android devices may vary depending on the specific phone model and Android version. However, here are some general steps that you can follow:

  1. Built-in Call Blocking Feature: Many Android phones come with a built-in call-blocking feature. To access this feature, open the Phone app and tap on the three-dot menu icon in the top-right corner. Select “Settings” or “Call Settings” from the dropdown menu.

  2. From the settings menu: look for an option like “Blocked numbers,” “Call blocking,” or “Call rejection.” Tap on it to access the call-blocking settings.

  3. In the call-blocking settings: you may find options to block calls from unknown or private numbers. Enable the option to block no caller ID calls. Keep in mind that this may also block calls from legitimate sources that choose to hide their caller ID for privacy reasons.

  4. Call-Blocking Apps: If your Android phone does not have a built-in call-blocking feature or you want more advanced options, you can use third-party call-blocking apps like Hiya or Truecaller. These apps offer features such as caller identification, spam call blocking, and call-blocking based on a list of known scam numbers. Download the app from the Google Play Store, set it up following the instructions, and enable the option to block no caller ID calls.


In conclusion, dealing with no caller ID calls can be frustrating, but there are several methods to help you identify and block these unknown callers. By using call unmasking services, reverse phone lookup directories, call-blocking apps, or setting up call screening, you can take control of your phone and protect yourself from unwanted calls. Remember to stay vigilant and always exercise caution when answering calls from unknown numbers.

Frequently Asked Questions

Can I find out who’s calling me from a no caller ID number for free?

While some services offer free trials or limited features, most effective call unmasking and reverse phone lookup services require a subscription or payment.

Is it legal to use a call unmasking service?

Using a call unmasking service is generally legal, as long as you are not using the information obtained for illegal or malicious purposes. However, it’s essential to be aware of your local laws and regulations regarding privacy and telecommunications.

Can I block all no caller ID calls on my Android phone?

Yes, most Android phones have built-in call-blocking features or allow you to download call-blocking apps from the Google Play Store. The exact steps may vary depending on your device and the app you choose, so it’s best to refer to your phone’s user manual or the app’s instructions.

How can I prevent my own number from showing up as no caller ID?

You can hide your caller ID on a per-call basis by dialing *67 before the phone number you’re calling. This will block your number from being displayed on the recipient’s phone. Some phone carriers also offer the option to permanently block your caller ID. Contact your carrier for more information on this feature.

Are all no caller ID calls spam or scams?

No, not all no caller ID calls are spam or scams. Some people may choose to hide their caller ID for privacy reasons, and certain businesses or organizations may also use no caller ID numbers. However, it’s essential to be cautious when answering calls from unknown numbers, as they could be potential scammers or telemarketers.

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