Called me on my cellphone. No message left.

Claims to be an IRS Officer. Stating the IRS is suing me for tax fraud.

Claims IRS is suing me for tax fraud

There are numerous telephone and email scams in which individuals claim to be employees of the Treasury Department. These scammers often state that they are from the “Department of Legal Affairs,” offer grant money in exchange for you wiring a small payment, or threaten to arrest you within a short period of time unless payment is made. Do not provide personal information or payment to these individuals.  Their actions are crimes under Titles 18 and 31 of the United States Code, and the Treasury Office of Inspector General is working to stop them.

If they claim to be from Treasury, report  it to OIGCounsel@oig.treas.gov with a description.  If it was a phone contact, include:
the exact date and time that you received the call(s)
the phone number of the caller
the geographic location and time zone where you received the call
a description of the communication.

If they claim to be from the Internal Revenue Service (IRS) or it is about taxes, report it to the Treasury Inspector General for Tax Administration at:
https://www.treasury.gov/tigta/contact_report_scam.shtml

https://www.treasury.gov/services/report-fwa/Pages/Report-Email-Scams.aspx

I received a call from (206) 823-3835 saying they were from the IRS and they were going to arrest me for my taxes being wrong unless I wired the payment to them. I knew it was a scam and told him not to call me back. He told me he was from Pakistan and I couldn't stop him from calling 100 times a day if he wanted to.