Robtex

Up: 156.203.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 156.203.128.0/19
Down right: 156.203.160.0/19

IP	Type	Hostname
156.203.147.158	PTR	host-156.203.158.147-static.tedata.net
156.203.152.76	PTR	host-156.203.76.152-static.tedata.net
156.203.153.49	PTR	host-156.203.49.153-static.tedata.net
156.203.162.131	PTR	host-156.203.131.162-static.tedata.net
156.203.173.131	PTR	host-156.203.131.173-static.tedata.net
156.203.178.230	PTR	host-156.203.230.178-static.tedata.net