They call me everyday and never leave messages. I finally answered today and it was on silent. So annoying!!!

They keep calling and no message!  I'm on the no call list and ready to turn them in.

What is that app called? Thanks in advance

This is probably Receivables Performance Management, a debt collector.  Whenever you get a call from a strange number, do not answer.  I have been unable to find any law which REQUIRES you to answer the phone when it rings.  Yes, it is annoying.  If they leave a message, listen to it.  If they do not, you cannot call them back!   Write down the number calling and do a search on it - type the phone number (example - 666-666-6666) into the search box.  If it is legit, you can always call back. If a debt collector, by law the collector MUST write to you within 5 business days.  When you get the letter, dispute this if it is not your debt.  That is how you deal with it.

I have been getting calls at least 4 calls a day from area code 425 everyday starting at as early as 8 am and as late as after 930 pm if i answer nobody says anything if i let it go to vm no message is left.  I have blocked every number that has come from this area code and they just use another number. I have blocked at least a half a dozen 425 numbers. It's really making me mad. What can we do to stop this without having  to change our phone number?