Got this call today not sure who it is I was sleeping because I work third shift. The number came up 912-233-905700. Why dose this number come up with two zeros on the end of the number

Same deal, got a call from this # this morning.  You could hear the cacophony of voices in the background.  It's obvious a boiler room setup.  When I stated my company name and my name there was a pause and then they hung up.  Not sure what to make of it. . .