Robtex

Up: 156.201.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 156.201.0.0/20
Down right: 156.201.16.0/20

IP	Type	Hostname
156.201.3.128	PTR	host-156.201.128.3-static.tedata.net
156.201.4.221	PTR	host-156.201.221.4-static.tedata.net
156.201.5.63	PTR	host-156.201.63.5-static.tedata.net
156.201.8.143	PTR	host-156.201.143.8-static.tedata.net
156.201.8.166	PTR	host-156.201.166.8-static.tedata.net
156.201.9.109	PTR	host-156.201.109.9-static.tedata.net
156.201.12.161	PTR	host-156.201.161.12-static.tedata.net
156.201.26.243	PTR	host-156.201.243.26-static.tedata.net
156.201.27.46	PTR	host-156.201.46.27-static.tedata.net
156.201.28.24	PTR	host-156.201.24.28-static.tedata.net