Who called from 4149335000

This number has called my cell phone a few times, no message.  Aren't cell phones exempt from telemarketers?

That is the Blood Center of Wisconsin.  They've been calling me and not leaving a message as well.

Yes, they keep calling me too.  I've asked them to take me off their list last time they called, and they hung up on me.  That was two days ago, and they just called me again.

Got a call on my  cell phone also, how do these people get away with this?  Can you add cell phone numbers to the Do-not-call list?  If this is a non profit I supose they're exempt from prosecution.

they call at all hours of the day, i've gotten called as late as 9:00pm. my girlfriend thinks it's another girl calling me. I donate regularly, so leave me alone.