This is a VERIZON customer service number... with that said, do not trust your caller ID.  Criminals have the capability to "spoof" numbers on caller ID.  With the right hardware, they can make any number show up in your caller ID...

I received a call from this number after being accidentally disconnected from Verizon customer service.  The person calling was the same person at Verizon that accidentally hung up on me.  No phishing involved.  100% legitimate.