It is definitely some sort of routing used by a company that operates payphones. My friend called from a payphone right around the corner (in St. Louis) and this number came up on caller i.d.
I got a call on my cell from 4156561073 at 10:55pm on a friday night, I didn't recognize the number so I didn't answer it. I went online and found out the area code was san fransisco and the bay area california. I tried to call the # back 5 mins later and it said the # was disconnected or not in service. I tried to trace the # and came across this site.
i just got the call, i talked to them for three minutes, first a man, then a woman. i think they are a goverment agency or some rich kids. im scared. they said that they knew.