How to Block No Caller ID on iPhone? Read to Know More!

Receiving calls from unknown or hidden numbers can be annoying and sometimes even concerning. Fortunately, if you own an iPhone, there are several ways to block No Caller ID calls effectively. In this article, we will explore various methods and step-by-step procedures to help you protect your privacy and maintain peace of mind. From utilizing built-in iPhone features to installing third-party apps, we have you covered. So, without further ado, let’s dive into the world of blocking No Caller ID on iPhone!

How to Block No Caller ID on iPhone?

Here are the most effective ways to block No Caller ID on your iPhone:

1. Enable Silence Unknown Callers

By activating the “Silence Unknown Callers” feature, you can automatically silence calls from numbers not in your contacts list. This can help you avoid spam and unwanted calls without completely blocking them.

2. Block Caller ID Per Call

You can block No Caller ID calls on a case-by-case basis by dialing a code before making a call. This allows you to hide your caller ID when necessary.

3. Use Do Not Disturb Mode

Utilize the “Do Not Disturb” mode to silence all calls, notifications, and alerts when your iPhone is locked. You can also enable exceptions for calls from your contacts to ensure important calls are not missed.

4. Create a New Contact for No Caller ID

By creating a contact entry with a unique name like “Unknown Caller” or “Blocked,” you can add No Caller ID to this contact and then block it. This method works well if you prefer not to enable the Silence Unknown Callers feature.

5. Install Third-Party Call Blocker Apps

There are several third-party apps available on the App Store that offer advanced call blocking features. These apps can identify and block spam calls, including No Caller ID calls, effectively.

6. Contact Your Carrier

Reach out to your mobile carrier’s customer support and inquire about their call-blocking options. Some carriers offer additional services to block unwanted calls, including No Caller ID numbers.

7. Report Spam Calls

Help combat spam and unwanted calls by reporting them to your carrier or the Federal Trade Commission (FTC). Reporting such calls can contribute to reducing their frequency.

8. Check for iOS Updates

Regularly update your iPhone to the latest iOS version to ensure you have access to the latest security features and call-blocking options.

9. Set Call Blocking in Contacts

For specific contacts causing issues, you can block their numbers directly through your iPhone’s Contacts app.

10. Use a Call Screening Service

Consider subscribing to a call screening service that can identify and block unwanted calls, including No Caller ID calls.

11. Check with Your VoIP Provider

If you use a Voice over Internet Protocol (VoIP) service, check if they offer call-blocking options for No Caller ID numbers.

12. Turn off Show My Caller ID

Navigate to your iPhone’s settings and disable “Show My Caller ID” to prevent your number from being displayed to others.

13. Report Persistent Callers

If you receive repeated unwanted calls from No Caller ID, report the issue to your local authorities. Harassing calls can be a legal matter and should not be taken lightly.

14. Utilize Call Forwarding

Consider forwarding No Caller ID calls to a voicemail or another number to avoid direct interruptions.

15. Opt for a Silent Ringtone

Assign a silent ringtone to No Caller ID numbers, so you don’t get disturbed by their calls.

16. Turn on Call Blocking and Identification

In your iPhone’s settings, enable the Call Blocking and Identification option to automatically block known spam callers.

17. Implement Call Whitelisting

Use call whitelisting apps to allow only specific numbers to reach you while blocking all others, including No Caller ID.

18. Enable “SMS Filtering” for Unknown Senders

In your Messages settings, enable “Filter Unknown Senders” to prevent messages from unknown contacts.

19. Use Call Firewall Apps

Install call firewall apps that offer advanced call blocking and filtering options.

20. Avoid Sharing Your Number Online

Be cautious when sharing your phone number online to prevent your number from being picked up by spam callers.

21. Set Call Restrictions for Certain Times

Configure your Do Not Disturb settings to apply only during specific hours to avoid blocking important calls during other times.

22. Use Call Rejection

For persistent No Caller ID callers, utilize the call rejection feature to automatically reject their calls.

23. Leverage Voicemail Transcriptions

Use voicemail transcriptions to quickly check messages and identify potential spam callers.

24. Keep Personal Information Private

Avoid sharing sensitive personal information with unknown callers, as this could lead to further issues.

25. Block No Caller ID from Recent Calls

Access your recent calls list and block No Caller ID numbers directly from there.

How to Block No Caller ID on iPhone? read to know more! – FAQs

Q: Can I completely block No Caller ID calls on my iPhone?

A: While you can’t completely block No Caller ID calls, you can use the “Silence Unknown Callers” feature or install third-party apps to minimize them.

Q: Do I need to pay for third-party call blocking apps?

A: Some call blocking apps are free, while others may offer premium features for a fee. Choose one that suits your needs and budget.

Q: Can I unblock a No Caller ID number later?

A: Yes, you can unblock a No Caller ID number by navigating to the blocked contacts list in your settings.

Q: Will blocking No Caller ID calls also block other unknown numbers?

A: The “Silence Unknown Callers” feature may block calls from all unknown numbers, not just No Caller ID calls.

Q: Can I report No Caller ID calls to the authorities?

A: Yes, if you receive harassing or threatening calls, report them to your local authorities.

Q: Are call blocking apps reliable?

A: Many call blocking apps are effective in blocking spam and unwanted calls, but their efficiency may vary. Read reviews and choose a reputable app.


Blocking No Caller ID calls on your iPhone is essential to maintain your privacy and avoid nuisance calls. With the various methods and apps available, you can now take control of your incoming calls and enjoy a peaceful calling experience. Whether you opt for built-in features or third-party apps, remember to stay vigilant and report any persistent harassing calls to the appropriate authorities. Now that you know how to block No Caller ID on iPhone, you can reclaim control over your phone and focus on the calls that truly matter.

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