I am so tired of getting calls from this number, they call several times a day!!!!!!! Surely there has to be a way to stop them. It is bordering on hassassment, because I told them to quit calling so now they call and if I answer it they just sit  there or hang up.

When an out of state caller dials *67 to block their number from coming up when they dial a Cincinnati landline, sometimes the caller ID shows "Unknown", sometimes it comes up with this number (513-587-4416), or a similar number.

I think it has something to do with coming through several telephone switches with the caller ID block that causes this.  If you dial the number, you get a fast busy, etc.

In the case I'm familiar with the caller is calling from a cell phone to a landline in Cincinnati, OH

This phone number may be associated with a sweepstakes scam from London England during the period of December 2011,  with a contact # 011-44-7550-881-674.

Got a call from 513.587.4416 at 4:15am.  Who is this?

called one day with 587-4416 caller ID, next day 587-4417.  Returned call both days got busy signal , then 2nd time got a ringing phone for over 1 min w/o answer.