Same thing today - missed a call from this number and they did not leave a message. I called back and it is a call soliciting potential  mortgage borrowers (I believe refinancing).

Caller ID flagged call as coming from Lihue.  It was about refinancing my home mortgage.

Just received a call from this number.  I let it go to the machine.  No message left.

CID indicated "out of area" and "unavailable."  Triggered machine but no message left.

Got a call from this number on my cell; they did not leave a message.  We have been harassed by calls about mortgage refinance for the past several months.  We are satisfied with our current mortgage and do not wish to refi, but telling the callers this does not seem to stop them.