Yes, usually. When you dial *67 before making a call, your phone number is hidden from the person receiving the call. Their screen often shows something like “Unknown,” “Private,” or “No Caller ID” instead of your actual number.

What Does *67 Actually Do?

*67 is a caller ID blocking code used in North America. You enter it before the phone number you want to call, then make the call as usual. The network tells the receiving side not to display your number.

And that’s why *67 calls are generally treated as unknown or private calls. Your phone isn’t necessarily detecting that the caller is suspicious. It simply isn’t being given a number to display.

Unknown Doesn’t Mean Anonymous

There’s an important difference here. *67 hides your number from the person you’re calling, but it doesn’t make the call completely anonymous. Your carrier can still have records connected to the call, and certain services can handle blocked calls differently.

Think of it as hiding your caller ID rather than disappearing from the phone network.

What Happens on the Other Person’s Phone?

The receiving phone decides how the blocked call appears. You might see “Unknown Caller.” Someone else might see “Private Number.” Another phone could simply show “No Caller ID.”

That’s also why searching online for one exact label can get confusing. The wording isn’t universal.

• “Unknown Caller” usually means the number wasn’t shown to your phone, rather than proving the caller is a scammer.

• Private number? That’s the same basic idea, although the wording comes from the phone or carrier.

• Some phones block these calls automatically, which is honestly a sensible setting if you don’t need calls from hidden numbers.

A Quick Example

Raj used *67 once because he needed to call a business without having his personal number displayed. He checked the result afterward and noticed the business phone showed “Private Number.”

Nothing mysterious happened. His number was simply withheld for that call.

Why Someone Might Use It

There are perfectly ordinary reasons to hide a phone number. Someone might be calling a business and not want their personal number saved. Another person might be testing whether a phone line works without sharing their caller ID.

But repeated calls from a blocked number are a different matter. If you don’t recognize the caller and they refuse to identify themselves, there’s little reason to give them your attention.

Should You Answer a *67 Call?

I’d be cautious. An *67 call isn’t automatically dangerous, but there’s also no prize for answering every unknown number that appears on your screen.

If the call matters, the person can usually leave a voicemail or contact you another way. And if you keep getting unwanted private calls, your phone may have a setting that lets you silence or block calls from unidentified callers.