Who called from 2177352128

Received call yesterday from this number 1-217-735-2128; returned call mailbox full.  I don't know who this is and cannot find out mailbox always full.

wont speak, just called 3x and said nothing

No response after I answered and said hello, silence at other end, then dial tone.  Called at 4:40 P.M. Wednesday November 7, 2007

called no message google search says it is A Davenport caled back says mail box full

Called again, no message left. This is really annoying - I wish there was a way to stop them!