How to Unblock a Unknown Caller?

Okay so I get prank called. Here n there no biggie. But I would like to know a free easy way to reveal the private number that calls me so I can call them and miss with them back.
Please it has to be FREE. I don't want to spend money on this. I have a IPhone 4s with Verizon if that helps any.

It's not possible.
If it keeps up, contact your Service Provider, or contact the police, and have them deal with it.

Usually your phone user guide has the code to unblock blocked callers. Try *84, i have known that to work.

  • When you Block Caller on iPhone, does it completely block them or do they show up as Unknown? I routinely "Block Caller" telemarketers, so does using the iPhone "Block Caller" option block all calls, or will the calls still come through and just show up as "Unknown"? I've received a lot of "Unknown" phone calls lately, so that's what I was attributing it to.
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