My wife got a call on her cell phone, it was listed as a "private number". They left a message saying it was the IRS and they wanted her to call 254-859-0362 because they have been trying to reach her. My wife called it, got an answering machine and left a message that wouldn't be appropriate to quote here. There is an IRS center in Hamilton, Texas but we live in Idaho, it's definitely not our local processing center. Looks and sounds an awful lot like a scam call.
These people called the landline and it's a scam. Even sounds like a robo-call. Why bother? Don't bother calling back. Did some research and they have a number from Texas that doesn't let you leave your "response". Another IRS Scam call.