This is very likely a criminal scam because: they call numbers on the dnc list. They have an obviously fake name. They do not leave a message on the answering machine. They call from different numbers.
We have gotten 9 calls from this number so far today. When we answer the phone nobody answers. We called the number back & got a recording "you have been contacted by a telemarking firm. If you wish to be removed from our list press one." After pressing one, another recording comes on saying "If you wish to be removed from our list, lease key in your 10 digit telephone number after the beep" but no beep ever happens. This recording repeats over and over again, but there is never a beep. DO NOT ANSWER when they call and DO NOT CALL them back. IT is a SCAM. Beware.