Who called from 7089460000

this number was also legitimate in my case. My Karate instructor calling and left a msg. I think it must be a phonecard I know my number is long distance for him and the dojo phone has no long distance carrier.

A phone call from human resources about a job interview.  Legit phone call.

Called at 5 am and no one on the other end.
If it was a calling card, why didn't anyone speak?

Called 1 am...and twice again the next day...all to my business.

got a phone call from them and called back.  Recorded voice said 911 cannot be used from this area. Or something like that.  No one actually answered.