rang and left no message

I keep getting calls from this number but when I pick up there is only intermittant beeping.   It even leaves me messages with beeping.   I've gotten 5 calls already.

I keep getting calls from this number also and when I called number back all I get is a loud humming noise like from a fax machine. I also would like it to stop. I am on the NO CALLING LIST.

That is a mask number.. When you call back it is nothing. It is something financial institutions use so they can call out without giving up there extension or even compnay directory. it is used primarily for outgoing calls so if the call is missed they dont have people calling back saying someone called me from this number...

also got this call!!