Who called from 4404141700

I get calls from this number every morning. They don't leave a message. When I answer they hang up. How can I stop this?

I gotten a call from Asset Managemen on Sept 10,2007 at 1:09pm.  I never heard of them

These people called me again and this time a lady called and asked me my name and I didn't tell her I asked who she was and the lady told me her name and I never heard of her.

Wrong # but annoying

Some sort of asset managment company.  calls either a few times a day or none at all.  know my name but won't tell me who they are or what the call is about.  They try to get address info and get upset if you don't provide it.