Got a call from this number and didn't answer. They left a message and it was the Veteran Affairs pharmacy program regarding a billing concern I had with one of my prescription.
Caller ID said "Name Unavailable". About 5 seconds after answering there were 2 tiny little metallic "dings", but nobody was on the line. Very strange...
Has to be a VOIP (voice over internet phone--think Magic Jack or Vonage). No phone company issues numbers like this. I wouldn't pick up or speak to whoever is on the other end. Highly, highly, highly doubtful they're legitimate.