I've also been getting these calls several times a day for a couple of weeks (Albany, CA).
A little googling suggests that "YPR" stands for "Yellow Pages Research", which seems to fit with some other people's experiences.
I just called the number myself (248-630-2829) and received a recording asking if I wanted to be removed from the call list. To do this I had to key in my number. I then got a message that said my number will be removed within two business days. We'll see.
Ordinarily I'd be wary of entering my number, but I figure they already have it anyway so....
YPR 248-630-2829 has called my house 25x in the last two weeks! This is ridiculous - and I also have had nothing but problems with Comcast Digital phone since switching - it's a nightmare with the phone system.
crazy....so many calls from this number..wondering where they came from...I am with comcast....it would b epossible that comcast is given phone 3S to third parties...but for what purpose...nobody answer the call when you lift the auricular...anyhow ...just reporting the hassle.