Who called from 4153699160

I've asked them to take me off their list over and over again. They've called twice this week. Don't give them money!

Persistent unwanted calls

Yes, it's Clean Water Action.  They come door-to-door every year - I support the cause, but the incessant (and rude) phone calls just killed my support for them - they have been very nasty to my wife when they call, as they only wish to speak to me (go figure).  They'll not get another dime from me, I've blocked their number, and I'm looking forward to greeting them with this news the next time they show up at my door.

What I'd like to know, is, how did they get my cell #?

It's so easy to look up personal information these days.