I have been getting calls that my caller ID has "Unknown" on it. I thought that by having caller id block would block this. I was looking at my call list and saw that the "Unknown" listed a number as Unk-nown.
I think this is how it get past the block. I tried to list this but it won’t take because it's not a number. I thought that I would us the letters to make the numbers but who knows what numbers are used?
Think there is any way to block this?