Keeps calling. Doesn't leave a message

Calls several times a day, doesn't leave a message. I don't answer. Already called twice today at 8:55 and 9:07am.. Annoying!

Caller ID says "SHELLSVL".  FYI, Shellsville is an unincorporated community in Southeastern Philadelphia.  They call 3 times in one day!  Twice they leave no message.  Once I picked up they asked for someone who lives here by name (the phone is not listed in their name).  As usual I said nothing at all and they hung up.

I call after business hours (using *67 to block my number).  I hear, "We're sorry your call can not be completed at this time.  Please, hang up and try your call again later.  Thank You"  Then it hangs up.

So they have a spoofed caller ID and don't seem to be able to be called back.  Smells like a SCAM.

They keep calling and no one there. When you call back it is "were sorry your call cannot be completed...."
Calls many times a day. This is a business and a home. Knock it off!

They call and call and call and do not leave a message they are a pain in the butt