Missed a call on my cell from this number and they left a message saying it was the IRS. I called back from a different number and they asked my cell number. I asked why because I didn't believe it to be the IRS and they hung up. I call back now and get no answer
IRS scammers. They left a message on my answering machine. I never pick up on unrecognized numbers. If it's important or someone I know, they'll leave a message. Criminals won't.