Go to GOOGLE and type in that exact same thing!

Here you go!

http://makinghomeaffordable.gov/loan_lookup.html

Matt Ennis:

Fannie Mae requires an address and name of the borrower while Freddie ALSO required the last 4 digits of their social.

That's right.  Freddie Mac seems to be protecting consumers more from someone who would search for leads based on the GSE owning their loan. 

I use these two links -- as previously mentioned -- Freddie requires last 4 of social -- Fanny requires you to type in "what you see" in the box.  Btw:  while the DU refi +/LP refi + may "sound" great -- it hasn't applied to much of the audience in AZ, CA, NV or FL.  Expensive as well, esp. w/Freddie as there's the $ limit you can roll into the new loan.  In real-life, the applicant doesn't have the necessary $ to bring to the table - to obtain a rate that benefits them.  Just my personal opinion and observation.

http://loanlookup.fanniemae.com/loanlookup/

https://ww3.freddiemac.com/corporate/