picked up and call was  gone

Received call from this number.  Did not recognize, did not pick up. They left no message.  Am on caller DNC and do not know how they got this number.

Caller ID states Massachusetts.  I cut off  answering machine when caller unknown.  I don't think we are ever going to be rid of these telemarketing calls as long as someone is making money on them...especially the phone co,  I equate this harassement to the post office bringing us nothing but junk mail in order to keep the business going at the taxpayers expense !!

no message

I get these call often, I anwser the caller hanges up I try calling the number back and get a busy tone? The caller ID shows:
                                 Massachusetts 508-100-0000