There have been 2 people calling from this number to my father who is in the process of getting his ss disability, they have been asking him for info and questions that ssa already has, unable to answer things that ssa knows, sounds fishy, so we called his ss lawyer and ssa and both said they have no idea who this is calling. One of the other numbers they called from, 800 880 2832 comes up as a san fransisco area art store?!?!
Anyway. Lawyer said DO NOT give out ANY INFO to them. They seem to be specializing in ssa related info and could even be someone connected with the office, or someone who (since they've been doing this since at least 2008) has invested in 'bouncing' the number to mirror a legit ssa number.

However, nobody has listed any fraud (that I know of) connected with these called on the online boards, so it MAY really be SSA. BUT don't take the chance.

Sandy

I just got a cll from 510-970-1100 also. There was silence when I first answered so I just hung up as I always do if I don't hear a real person right away.

I find it very suspicious that I applied for retirement social security online just 15 hours ago.

This is valid.  They left a relevant message and I returned the call to a toll free number and spoke to a real person.  They are just a local branch (in California) of the SS office.

On 02-24-2012 I received three calls in a row from this number.  I didn't answer as I was asleep.  Called it back and it rang constantly with no voicemail.

Received call saying SS to apply Rx help. NO info given...Sat 3-10-2012  7:30am