Says its irs

That makes it easy then. The IRS does not call you on tax issues without sending a mail or a bill first, much less likely so on weekends. There is not even an IRS office at the location where the number is associated.

Ally Bank called from this # and left a voice message.

Unidentifiable "Dell Support " called to tell me that "half the processes" on windows had stopped working. Never mind that I use mac. Never mind that I run a firewall. Never mind that I would never allow any of my computers to send detailed process info to the manufacturer.

called last two days and left no message each time.  phone number is disconnected when attempted to call back