They called my number and said if I don't pay 2 thousand dollars I will be arrested....well my phone is in my mothers name his name is john Thomas identication number gs7386.......is this really a scam?

IRS scam

They say that they are IRS

DO NOT ANSWER THIS CALL, DO NOT GIVE OUT ANY INFORMATION.  This is a scam.  The IRS does not call you using an automated message.  The IRS will send you notices by mail.  When in doubt, call the IRS directly yourself as i am told they have resorted to even sending fake letters.

The IRS is geting ready to sue me again.....
.......10 times this summer