http://pacer.cadc.uscourts.gov/common/opinions/200807/07-1446-1126053.pdf
Given the dramatic decline in the number of dial up ISPs and CLECs, this order comes rather too late to give carriers what they deserved. Still, it may end up costing the telcos some big money going forward.
BTW, mandamus is pretty rare. You have to really piss off a court before it issues a writ of mandamus.