Keeps calling me late at night. This is my main phone line. I'm pregnant and mother of a 2nd grader, I need my sleep and don't need this harassment. Please tell me how to stop these calls.

It's a cell phone caller called wheresmycellphone.com which is also connected to a website called humorhotlines.com (a website similar to that of prankdial.)  However, it's not a prank calling website. If you pick up, it says "thank you for using wheresmycellphone.com, goodbye."

413-397-2057 called me too
I never answered and sadly I missed out on the amazing deal they had to offer.

The call is from: http://www.wheresmycellphone.com/calls/XIoO3u9uxEA It is for people who have lost their cell phone, and you can enter any number you'd like. It is.. Very annoying.. But also very helpful you lose your phone as often as me..

Received robo call first with a message that was incoherent followed by a call from this
number.  The message was "thank you for using find my cell phone.com.  Considering I was asleep
when the original call came in, it would have been impossible for me to contact any web site. This
is obviously yet another scam that we consumers will be paying for.  When I attempted to call
the listed number, the call would not go through.  Have a great day you scam artists may you
receive exactly what you deserve.