I got the same message but figure it is some kind of scam. I listened to try to see what the hook is, but I didn't call the number he gave me that I had to call back "immediately" so I could get my money. I googled it instead and found this.
I got the same phone call, I hung up the phone and they immediatley called back, I told them not to call me again and he told me he would keep calling until I talked to him and I picked up my money.
A guy called saying he was from the US Government and wanted to give me $5000 in a grant based on the fact taht I had no criminal record and no bankruptcies.
He had my name and address. He gave me a number to call to receive my grant. I asked what branck of the US Gov and he couldn't answer me. This is a scam for sure.
My husband got this call on his cell phone from a guy with a very thick asian accent (not Filipino or Indian) telling him that he won a grant from the US govt and the only thing he has to do is to go to a Western Union office and sent the govt a deposit which refundable then wait there for a little bit and they will return the deposit with his grant money. I asked the guy if he is an IDIOT because I did not apply for any grant and if the govt wants to give me money they will send me acheck! He said it is not a scam, so I said I wll call the police and you can explain that to them and he hanged up.
The sad thing is, when I called the police they said that no agency is taking report or doing something about this type of crime. Although in CA if the victim is a senior citizen, the social services will come and eveluate the victim to see if they are able to live by themselves or should be sent to a group home!
I thought it was pretty fun calling THEM back until they started shouting obscenities and vulgarities at me; plus, I got three of them to give me their names: Calvin Smith, Ricky Johnson, and Chris Adams. However this had little more than entertainment value due to the very likely possibility that their "real" names are far more Asian in origin :)
So far, I see that the number is from a landline in WA, but haven't found much else yet.