We (Nomorobo) protect you from both neighbor spoofing as well as "standard" robocalls. We add over 1,300+ new robocaller numbers every day. It's pretty crazy out there.
I switched to ATT Call Protect which works much better. Now i get 1-2 calls/week. I would go back to nomorobo if it worked better.
We used to show "unblockable" because there was a problem with false positives. Lots of families had sequential numbers that were accidentally getting blocked.
Now, if you give us access to your contacts (local processing only, never transmitted to our servers) we can completely block them.