This number, 556-644-2656, calls every day with the caller ID being only 556644.  The first time they were very rude, tried to tell me that I wanted my computer hacked because I did not want to talk to them.  I told them to not call again but they have called nearly every day and "leave a message" on my voice mail which is nothing but background noise.

Received a call from this number this morning from a woman claiming to be with Microsoft tech support saying they were receiving reports of a virus from my computer.  She claimed they emailed me but I didn't respond so she was calling.

An SMS message containing only timstamp of the message sending.