WARNING: Calling back using *67 does NOT necessarily hide your caller ID from ANYONE

We all know that you cannot block your caller ID number when you dial a toll-free number. But did you know that your caller ID number can be unmasked even if the number you dial is a regular number?

Here is a rather dated YouTube video demonstration showing how it is done, complete with calls showing that it works.

www.youtube.com/watch?v=q3S0RjrXhw0

This is nothing new. Hackers have evidently known how to do it for years. But the moral is NEVER call back anyone using *67 if you expected that, by doing so, the called party will not see your caller ID. Curb your curiosity!!

Interesting.
I wonder if it would make any difference on a phone who’s number is always blocked, (or supposed to be always blocked) having to pre-dial *82 to un-block per call out.

Nope. The caller ID is still delivered to the terminating phone company, along with a flag that indicates it is not to be delivered to the called party. But if you have enterprise-grade phone lines, you may still be able to see it by looking at the SIP setup exchange that sets up the call.  Whether it is correct or even legal to see or disclose this number if you are not a law enforcement officer may be subject to question, but the number may still be there if you know how to look for it.

Of course, this only applies to people who have been called and are calling back. The scammer almost always knows more about how phone systems work and can spoof the origin of his calls. A person calling back using a star-code to block his or her own number is very unlikely to be that sophisticated.

No one can see your number if you hit star 67 unless you're law enforcement or the phone company itself then this does not apply.  However.  If you have dialed an 800 number, then your number can appear on the other end.  Rule of thumb, if someone calls from an 800 number, use a different phone to dial the number back and listen for whoever answers as to who is calling.  Or look it up on the Internet with 800Notes, or some other place that people exchange and write up information on who is calling from what number.

Talk to strangers; pet stray dogs; run with scissors; climb into the heroin laden vans of toothless, drunken, child molesting junkies offering candy.... but, NEVER call back a number you don't recognize!

Capt Callblock
Very sad, but soTrue...and Funny as @#!+
Not sure how/why I randomly read your post, Thanks...made my afternoon 😄

That is actually not correct, I often times call numbers and use *67 and often times, after speaking to someone asking them to remove me from their calling list they ask me if the number I want removed is " - - - - - - - - - - - " and it is in fact the number I just called them from even though I used *67 and it is not only if calling an 800 or toll free number, it is with any number that goes to a business or a collection company or bank or credit card, they have phone software that automatically unblocks numbers as they enter the call queue - for me, the number I call them from I don't ever answer or have an answering machine hooked up to and isn't the original number they called me on .. but I often times call the number to then have info to put into 1800 notes for others to see, and the only way I can do that is to call the number that called me that I don't recognize and then report it and help others.  :-)  I get at least 15-20 calls a day from numbers I don't recognize and need to block, but because I operate a business I have to verify for sure if it is a sales, spam or scam number so I don't have a choice but to call the number to find out who it is.  Hope this info helps someone.

} No one can see your number if you hit star 67 unless you're law enforcement or the phone company

So you dispute the point which Anonie made three years ago, that per-call ID blocking can be circumvented by those who are not "law enforcement or the phone company". Please support your assertion.

That was some funny stuff.

I did a *67 call back to an apparent junk call and just for the heck of it listened to their scam spiel. The next morning I received a call from another number from the same people. Aaaack! That along with Cap Callblock's hilarious message made a believer out of me to NEVER...EVER...do a *67 callback  again.

Edited to add - their second call thanked me for the call back.

I just have one question, Why bother with calling an unknown number back? As my grandmother use to say " The more you mess with a pile of $#@! the more it will stink"!!!

Anonie is correct.  This is from my experience(s)

As much as I love messing with Telemarketers, calling back (with very few exceptions) is worthless. You'll get a recorded message saying the the number is not in service, or you'll get a recorded message saying to press '1' to get on their useless DNC list, or the worst is you will harass some poor soul that's had their number spoofed. Very rarely will an outbound telemarketing campaign also be able to receive calls.