Called in the middle of the night and left a short blank message

I was awakened at 2:30 AM be a call that shows this number on my caller ID.  The line is silvent when I picked up.  WHen I tried to call back, there is a message that the line is disconnected.  I also got a call from a number only a few digits different -- 520-332-6764 -- on Aug. 24 at 3 AM.

Just called me...answered, no one there.  So I put it on hold until they disconnected.  It took 7 minutes and 23 seconds.  Hopefully I spared a few other people from getting this call.

2:58 am Saturday. I happened to be up and at my computer but most people are not. Have no idea why the call - they hung up after 2 rings.

Usually this number will call if you have an older model non-updated iPhone so that when you answer the NSA can download and obtain all the information on your phone. If you update your phone, the NSA has installed back doors for it to be automatically downloaded without fake phone calls. If you do not have an updated phone or wish not to update or for the NSA to gather your personal info, just simply answer and hang up. You will have to deal with this for a long time though. The government wants ur soul.