Who called from 5042083935

I received a call from this number and gave my info what should i do

Rec'd call; didn't answer; when I tried to call the number back, I rec'd a recording stating "this is not a working number" - must be spam/scam.

just got call on cellphone- did not answer- no message left

Robocall with automated voice message about enrolling in obamacare.

Never answered this call. I don't answer calls from numbers I don't recognize.