US Social Security Administration at 501 South Vincent Avenue #201, West Covina, California.

Terrible service.
Do not go here if you want to be treat as a person. The stuff like a dog to kick me out just because I got the number and went to the wrong window and nobody want to help me or talk to me. I have class whole week and not too much time to wait anymore. It took me 1.5 hour to wait and get nothing. I feel I was treated like an animal!
I tried to complaint them but wait online for 30 min nobody answer!
Then I went to Pomona ssn office. It's smaller but sweeter. I arrived in11:50. Waiting in front of the window for 6 min and just took out of my notebook for studying, then it was my number!!! Only 5 minutes!!! And the officer was very nice and patience. I finished all I need document in 30 min total. ~
Anywhere is better then here