More Questions About Blocked Calls

I don't think so. I think you would need a court order to do it. But if someone is calling you and harrassing you from a blocked number, you should be able to find out who.

On the flipside, I know that with Bell Canada, if let's say you want to block a person from calling you, you have to have a police report in hand.

Call your phone company immediately after recieving a call from them.

the very same address that someone gave me in my last post has info on that.
http://www.cs.rutgers.edu/~watrous/phone-features.html

Have the most recent calling number automatically recorded at Verizon's Unlawful Call Center. This can be used as evidence in court. (Per successful usage charge -- currently $1.00.)

To use: *57

Nice!

It's very, very difficult. They have to call repeatedly, and you have to call the police about it before you can get a trace put on, depending on your local laws.

It is possible to be done, by the police if it's necessary.
If where you live is similar to where I live, chances are you call the police first and tell them "Hey I'm getting __________ calls, not sure who they're from and the number is blocked." And they'll probably tell you to record them - write down every time they happen, what the time was, what was said if anything was, etc - for a certain period of time before doing anything else. If they're calls threatening your life, or something I presume they'd probably do more (or trace it quicker), than if they're calls that are probably (just a random example, not sure of your exact situation) from your SO's ex just calling and sitting there dead air, or making stupid noises but not saying anything, or saying "(s)he's a cheating piece of shit!" or whatever stupid stuff.