Who called from 3100000000

I am in san diego, ca and have gotten this call 3 times todays and have never gotten a call from this number before. i ihaven't picked up at all no vm's from them either...getting annoyed! i am on DNC list.

I received a call three times today; the first two I missed and they left no voicemails.  The third time I answered, and it was a female who asked for me by name and stated she was from some group that sounded like "powder puff" and wanted to know if they could count of my vote for Obama.  I blew the call off, but it really disturbs me... I am on the DNC list as well, and I also have Verizon... have no friggin' idea how they knew my name, but it worries me more as I think about it.

My friend got the call between 6-8 hours ago as well. He is also from San Diego.

I googled it and I found this site, as well as this:
http://surfwallah.com/

Look  under the "contact us" tab it sounds real phony.

Their "address" is as follows:
Surfwallah.com
P.O. Box ??????
SoCal, California,  90405
U.S.A.

And their phone number is none other than
Telephone:         [310] 000-0000

I have gotten 3 calls in the last 12 hours or so.  I live in LA too.  My carrier is Sprint.

I had received 5 calls last night from this number but wasn't around my phone to answer them.  This morning I received a call from them again and it was a woman asking if she could count my vote for Obama, she was from some group called Power Pack.  I told her no she couldn't and then she said that this call wasn't paid for my Obama's party.  I am on the Do Not Call list so how can they get away with calling??