Who called from 3606374890

These folks claim to be the IRS and leave messages that they are suing you. They are calling my home 3 or 4 times a day.
Today I called the number back from work and the man said he was with the IRS but when he found out I was returning the call from work, he hung up on me.

got the same call but  the IRS  does not make such calls to your home.

I just got a call from this number, it went to voicemail. I don't answer unrecognized numbers. Thanks for the information.