Who called from 4124894878

nothing

When I answered, there was just background chatter.

its central bloodbank.
they call me every day because im o-
they need to stop harassing people and they would be more likely to donate blood.

It's Central Blood Bank.  They will call. A lot.  Tell them they have the wrong number.  Then when they ask if you can donate blood, tell them you have AIDS.

Central Blood Bank won't take "No" for an answer. Used Comcast's call screening function to block them.