Ever feel like you’re answering a call blindfolded? That’s exactly what happens when “No Caller ID” pops up on your screen. 

Anonymous calls are like an uninvited guest in your home who refuses to introduce themselves. Whether it is a telemarketer, a scammer, or just someone who wants to be secret, such calls may be a real dent in your peace.

But don’t worry–you do not have to sit and wait for another mystery phone to ring. This blog explains what “No-Caller ID” exactly means and, more importantly, how to block it!

Let’s get to the point!!

🔑KEY HIGHLIGHTS
  • The absence of a caller ID indicates that the caller has concealed their phone number from being shown.
  • You must be careful not to share your personal information if someone is calling you and your phone displays “No Caller ID,” “Unknown,” or similar terms.
  • Applications like Truecaller, Hiya, and TrapCall can help identify unknown callers more easily.
  • Hiding or masking callers’ identities is typically done to maintain privacy or remain anonymous.
  • You can block or manage unknown calls effectively by using your phone’s settings, third-party apps, or carrier services.

What Does No Caller ID Mean?

what does no caller id mean

No Caller ID simply means the caller has blocked their phone number from being displayed. When a call shows “No Caller ID” on your phone, instead of showing their number, this means the callers hide their phone number. This feature is used for privacy reasons, enabling an individual or organization to make calls without revealing their identity or contact information.

When you get a call from a caller ID, you should be cautious. In case you don’t recognize his voice or feel that it is something fishy, don’t share your information; it might be a scam call. If you’re getting calls from No Caller ID, many modern smartphones and network providers also offer services to block or filter such calls.

Caller ID stands for “Caller Identification,” a service that displays the caller’s number, and sometimes even their name, before answering the call. This feature is incomparable for effective communication management and protects you from calls that you would not want to receive.

On the other hand, if a person is calling you and on your phone, it says “No Caller ID,” “Unknown,” and so on, then you must be very careful about sharing personal information with such an entity.

How “No Caller ID” works:

  • Caller Activates Blocking: The caller hides their number by using a feature or dialing a code (Example: Use the code *67).
  • Signal Sent to Network: The phone network processes the request to block the number.
  • Number Suppressed: The recipient’s phone displays “No Caller ID” instead of the caller’s number.

How to Handle “No Caller ID” Calls:

  • Ignore or Decline: If you suspect the call might be spam, let it go to voicemail.
  • Block Future Calls: Many smartphones allow you to block all “No Caller ID” calls.
  • Answer Cautiously: If you must answer, avoid sharing sensitive personal information unless you confirm the caller’s identity.

How to Block No Caller ID?

Here’s how you can block NO Caller ID or anonymous calls on Android and iPhone:

Block No Caller ID on Android

  • Step 1: Open the Phone App📞 on your Android device.
  • Step 2: Tap the three dots (or menu icon) in the top-right corner.
  • Step 3: Select Settings⚙️ or Call Settings.
  • Step 4: Scroll to find and tap on Blocked Numbers or Block List.🚫
  • Step 5: Look for an option like Block Unknown Callers or Block Private Numbers🔒 and toggle it ON.
  • Step 6: Save and exit the settings. Calls without Caller ID will now be blocked.

Block No Caller ID on iPhone

  • Step 1: Go to Settings⚙️ and open the Settings App on your iPhone.
  • Step 2: Navigate to Phone Settings📱 and tap on Phone.
  • Step 3: Find and select the Silence Unknown Callers option and toggle the switch to ON.
  • Step 4: Alternative: Use Do Not Disturb🌙 > Go back to Settings and select Focus > Do Not Disturb.
  • Step 5: Save and exit, and your iPhone will now silence or block calls from unknown or “No Caller ID” numbers.

Block No Caller ID from third-party apps

  • Step 1: Choose a Third-Party Call Blocking App such as Truecaller, Hiya, or Robokiller
  • Step 2: Download the chosen apps from the App Store (iOS) or Google Play Store (Android).⬇️
  • Step 3: Once installed, open the app and grant necessary permissions, such as access to contacts and call logs.
  • Step 4: Set up blocking features according to your preferences.
  • Step 5: Ensure that the app is set to block unknown or No Caller ID numbers, which should automatically filter them from your incoming calls.🚫☎️

Ways to Identify No Caller ID Calls

ways to identify no caller id calls

There are various reasons someone might hide their caller ID. Businesses might use it to prevent their work numbers from being saved or misused, while individuals might do it for personal privacy. However, this feature is also used by telemarketers or scammers to conceal their identity, making it harder for recipients to trace the origin of the call.

You can use some methods to identify No Caller ID calls. Here are the ways:

A. Dialing codes:

Dial *69: Dialing the code *69 can allow you to return the last call you received, even if the the calls that come from the No Caller ID. But be careful that this process of dialing code *69 is only limited up to 30 minutes after the call is received. Then, you can see an automated message with the caller’s number if the number is available. 

Dial *57: An alternative method to trace requests is to dial *57 with your phone service provider. So, in case you’re harassed or threatened by calls showing No Caller ID, you can simply dial the code *57. The code will connect you to the Malicious Caller Identification Service, which will likely identify the caller if the call goes through more frequently.

B. Contact your phone carrier

Your phone service provider can access the call logs and may help identify unknown callers or No Caller ID numbers and also find individuals with those unknown numbers. By providing your phone carrier with the right details about the date and time of the calls, they can retrieve additional information about the unknown caller.

The best way to find out who is behind No Caller ID is by contacting your phone carrier. You can contact your phone carrier through various means, such as customer service, including phone, chat, an app, a physical store, and more.

C. Third-party Apps

Applications like Truecaller, Hiya, and TrapCall can help identify unknown callers more easily. These applications use a vast database to provide information about incoming calls. At the same time, they are specifically designed to unmask no-caller ID numbers by revealing their identity when they call you.

Websites like NumLookup and Spy Dialer allow you to perform reverse lookups on unknown numbers. These services can provide details such as names and addresses associated with a phone number.

Ways to Make Calls: No Caller ID

Here are four ways to make calls without showing your caller ID:

Use a *67 Code: Dial *67 before the phone number you’re calling. This hides your caller ID for that specific call. For example, *67 + (phone number).

Activate Caller ID Blocking from Your Phone Settings: Many smartphones allow you to turn off caller ID visibility through the settings. This prevents your number from being shown to the recipient.

Use a Virtual Phone Number or VoIP Service: Services like Dialaxy, Google Voice, or other VoIP providers allow you to make calls using a virtual phone number, which can often hide your real caller ID.

Use a Disposable Phone Number: Some apps or services provide temporary, disposable phone numbers that don’t reveal your personal information, ensuring that your caller ID is not shown during calls.

Difference between No Caller ID VS Unknown Caller

The terms No Caller ID and Unknown Caller both describe calls where the caller’s identity is not visible, but they have distinct differences. Let’s see the difference in the given table:

Feature No Caller ID Unknown Caller
Definition The caller deliberately hides their number. The caller’s number is not recognized by your phone.
How It Appears Displays as “No Caller ID” or “Private Number.” Displays as “Unknown Caller” or similar text.
Intent Often intentionally used for anonymity or privacy. Unintentional occurs due to technical issues or lack of contact info.
Caller Information Not displayed at all (hidden by the caller). Not available, usually due to network or device limitations.
Traceability Difficult to trace without third-party intervention. It can sometimes be identified using reverse lookup tools.
Usage Common for telemarketers, pranksters, or anonymous calls. It can occur with legitimate calls from unfamiliar numbers.

Can I Know Who Called If They Have No Caller ID?

Unfortunately, it’s not always possible to know who called if they have no caller ID. As a result, there are few methods to identify who called you if the call is displayed as “ No Caller ID” in your phone display. Ways to know who calls if they have a No-Caller ID include using contact tracing services, dialing *69, enabling anonymous call rejection, third-party call ID applications, or contacting your provider.

Hiding or masking callers’ identities is typically done to maintain privacy or remain anonymous. It indicates that the callers have intentionally hidden their phone numbers for various purposes: privacy protection, anonymity, telemarketing or sales calls, harassment or fraud, and so on.
However, there is no foolproof way to view the phone number or name of the caller when the display shows “No Caller ID.” 

Also Read: How to Call a Blocked Number On iOS and Android?

Conclusion

“No Caller ID” calls can be frustrating, but you don’t have to let them disrupt your peace. You can block or manage these calls effectively by using your phone’s settings, third-party apps, or carrier services. 

Always stay cautious, avoid sharing personal information with unknown callers, and use the tips in this guide to take control of your incoming calls. Take action today and enjoy uninterrupted communication! 😊

FAQs

Are No Caller ID calls always spam?

Not necessarily; while many No Caller ID calls can be spam or scams, they can also be legitimate calls from businesses or individuals who wish to keep their contact information private.

Is it safe to answer a No Caller ID call?

Answering such calls can be risky, as they may be associated with scams or fraud. If you don’t recognize the number, it’s advisable to let it go to voicemail.

What should I do if I receive frequent No Caller ID calls?

To reduce unwanted calls, consider blocking these calls using your phone’s built-in features or registering your number with the National Do Not Call Registry.

How to call No Caller ID?

Some ways to call with no caller ID are:

  • Use *67 to hide your phone’s caller ID
  •  Using phone settings 
  • Use VoIP
  • Ask the Caller to Reveal Their Number

How do I block No Caller ID calls on my iPhone?

To block these calls, go to Settings > Phone > Silence Unknown Callers. This will send calls from numbers not in your contacts directly to voicemail.

Prasanta Raut

Prasanta, founder and CEO of Dialaxy, is redefining SaaS with creativity and dedication. Focused on simplifying sales and support, he drives innovation to deliver exceptional value and shape a new era of business excellence.

Prasanta, founder and CEO of Dialaxy, is redefining SaaS with creativity and dedication. Focused on simplifying sales and support, he drives innovation to deliver exceptional value and shape a new era of business excellence.