Introduction
Privacy concerns and anonymous calling have always been a significant aspect of telecommunication. Many users rely on methods such as Star 67 to hide their caller ID. But with advancing technology and stricter regulations, many people are wondering: Does Star 67 still work? In this article, we will explore the current functionality of Star 67, its limitations, alternative methods, and how it compares with modern privacy features.
What is Star 67 and How Does It Work?
Star 67 (*67) is a vertical service code that allows users to block their caller ID temporarily when making a call. By dialing *67 before the recipient’s number, your call appears as “Unknown,” “Blocked,” or “Private” on their caller ID.

How to Use Star 67
- Open your phone’s dialer.
- Enter *67 followed by the recipient’s phone number (e.g., *67-123-456-7890).
- Press the call button.
- Your number will be hidden for that specific call.
This feature is commonly used to maintain privacy when calling businesses, individuals, or unknown numbers.
Does Star 67 Still Work in 2024?
With changing regulations and advancements in caller identification, many users are questioning does Star 67 still work? The answer depends on several factors:
1. Landlines and Traditional Phone Networks
Yes, Star 67 still works on most traditional landlines and carrier-based phone services in the U.S. and Canada. If you are calling another landline or a mobile user on a conventional carrier, your number will appear as “Private” or “Blocked.”
2. Mobile Carriers and Smartphones
Most mobile carriers in North America, including Verizon, AT&T, and T-Mobile, still support *67 for anonymous calling. However, some carriers may restrict its effectiveness in certain circumstances, such as:
- Calls to toll-free numbers (800, 888, etc.)
- Emergency services (911, 112, etc.)
- Calls to businesses with advanced caller ID systems
3. VOIP Services and Internet-Based Calls
For users making calls via VoIP services like Google Voice, Skype, or Zoom Phone, *67 may not work as expected. Many of these services override caller ID blocking due to their internal policies and enhanced call tracking features.
4. Advanced Caller ID and Anti-Spam Systems
Many modern call recipients, including businesses and individuals with advanced call screening apps (e.g., Truecaller, Hiya, and Nomorobo), may still see a masked number but get alerts indicating that the caller is hiding their identity. Some organizations may automatically reject such calls.
Why Might Star 67 Not Work?
Even if it remains functional in many cases, there are some reasons why it might not work for your call:
- The recipient uses a call-blocking app: Many third-party apps can detect private numbers and block them.
- Certain mobile carriers: Some carriers have disabled anonymous calling to prevent spam and fraud.
- Government and emergency numbers: Calls to 911, police stations, and other official entities do not allow caller ID blocking.
- Business lines and VoIP systems: Many corporate and cloud-based phone systems have built-in tools to ignore anonymous calls.
Alternatives to Star 67 for Blocking Caller ID
If Star 67 does not work for your needs, here are some alternative methods:
1. Per-Call Blocking with Star 67
If *67 works for your carrier, this remains a simple solution. However, it must be used before every call.
2. Permanent Caller ID Blocking (Carrier-Based)
Most phone carriers allow customers to block their caller ID permanently by enabling a setting in their account.
- Verizon: Call customer service or enable the feature through the My Verizon app.
- AT&T: Enable caller ID blocking through your AT&T account settings.
- T-Mobile: Use the Scam Shield app or request caller ID blocking.
3. Using VoIP Services for Anonymous Calling
Some VoIP services, like Google Voice or Skype, allow users to set up a separate number or block caller ID through settings.
4. Third-Party Privacy Apps
Apps like Burner or Hushed provide temporary numbers for making anonymous calls, an effective alternative to it.
Does Star 67 Still Work Internationally?
Star 67 is primarily used in the U.S. and Canada. In other countries, different codes apply:
- UK: Use *141 before dialing.
- Australia: Use *1831 before dialing.
- Germany: Use *31# before dialing.
If you are traveling internationally, check with your carrier to confirm if a similar feature is available.

Pros and Cons of Using Star 67
Pros | Cons |
---|---|
Free and easy to use | May not work with all numbers or carriers |
Works on most landlines and mobile networks | Not effective for VoIP and business lines |
No need for additional apps | Can be detected by call-blocking apps |
Conclusion: Is Star 67 Still a Reliable Option?
So, does Star 67 still work? The short answer is yes, but with limitations. It remains a functional tool for blocking caller ID on many networks, especially for personal use. However, as technology evolves, its effectiveness is decreasing due to advanced call filtering, VoIP services, and mobile carrier restrictions.
If you need a more reliable way to maintain privacy, consider alternative methods like permanent caller ID blocking, VoIP services, or temporary number apps. Staying informed about carrier policies and new privacy technologies will help ensure your ability to make anonymous calls when necessary.