Who called from 2024642538

Talked about an urgent message concerning my social security being being blacklisted? Bunch a [***]!

My Social Security number has been hacked, but I must call to prevent legal action from being taken. GTFOH

Talked about an urgent message concerning my social security being being blacklisted? Robot Call

Calls over and over and leaves a message about social security number being hacked and they are taking legal action against me

Call back gets, "We're sorry the number you have dialed is not in service."  That means it's SPOOFED.  That means it's a SCAM.  Block it.
From the other posts, it is clearly a slight variation on the IRS SCAM.  Here's some information.
https://www.irs.gov/uac/newsroom/irs-repeats-warning-about-phone-scams
http://www.forbes.com/sites/johnwasik/2016/06 ... u/#6cb8a18e171f
https://www.pindropsecurity.com/irs-phone-scam-live-call_analysis/
http://money.cnn.com/2016/05/25/news/irs-impersonators-scam/