This is USAA's Mover's Advantage ID number. USAA is the United States Automobile Associatiton, a members-only insurance company servicing the officers and dependents of our Armed Forces. They do not solicit over the phone, and this number is strictly for use if you are particiapting in a move through their Real Estate division.
I was using the same Real estate service from Navy Federal credit union and got a call from this number. It was a woman I had spoken with before so it's a good number...not a scam.