Who called from 5138234244

they want you to call them back in regards to what you owe the IRS.

most likely a scam, put this on the block call list

Pre-recorded calls (such as these) are also known as robocalls, the FTC allows filing a complaint against these even if you're not on the DNC:  https://www.ftccomplaintassistant.gov/

Robo call scam about tax debt relief and how they will "cut your tax debt in half".
(What they don't tell you is that you have to pay them up front).

It's a scam. Block the number if you can, otherwise just ignore it.

Caller I.D. says NEW START TODAY. The JERKS hung up on my business answering machine.  I owe nothing to the government or on any credit cards or mortgage or car loan and have never carried debt.