We've been getting on average 3 calls a day from these jokers!  You call the number back and it says the call can't be continued.. There's no doubt this is a debt collector spoofing the line (which is VERY illegal).  Unfortunately we have no idea who they are.  They don't leave a message and when you answer they hang up.  I finally just flipped out on them!  They call all hours of the day waking my husband up who works nights.  They just don't care.. Total losers!  At least be mature enough to leave a message so we can know who you are and even if they're calling a valid number (I highly doubt they are)