Have received multiple calls from this number over several days. Caller ID identifies it as: HFACC INC MINNEAPOLIS. No one ever answers, however. I strongly suspect it's a dummy number, set up to "capture" valid working phone numbers that they can then sell to others. Don't call them back! I have now blocked on my phone and am also going to notify my carrier.
Called twice within two hours today--second time I answered, said hello, but silence on the other end. After a few seconds, the call was disconnected. Also got a call from this number two days ago. I called the # back today just to see if I could find out the identity of the caller but all I got was a message saying that the mailbox for this # hadn't been set up.