It's OC-768, we are running with the new Nortel Optera Metro units that are capable of those speeds.
OC-768 = 34357.248 Mbits p/s or 4.294656 GBytes p/s.
That speed is only achievable over fibre.
The fastest you could get to your home (over copper) is an STS-12.
STS-12 = 536.832Mbits p/s or 67.104 Mbytes p/s.