This was in my scammer list, so this time I did what another person recommended and I think it worked - I went on the net and downloaded the three tone sound for disconnected number - we've all heard it when we call a wrong number. I recorded it and have the recorder sitting near my cell phone, which is the number that's being slammed with scammers and spammers. If a number pops up in my contact list as a spammer, I press play and put the phone up to the recorder. Try it!
google this: sit.wav
Notice I said "if a number pops up in my contact list..." If I get a call that turns out to be one of these, I save it in a Contact file called SPAM or SPAMMER. That way I don't have to remember the numbers that have called.
The problem with the Block system is that these people are using VOIP numbers, which means they can have hundreds of numbers that show up. So have more than just that as an option. This is also why the phone companies can't keep up.
So beat them at their own game! sit.wav will help!