Robtex

Up: 156.192.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 156.192.0.0/17
Down right: 156.192.128.0/17

IP	Type	Hostname
156.192.0.0	PTR	host-156.192.0.0-static.tedata.net
156.192.0.1	PTR	host-156.192.1.0-static.tedata.net
156.192.0.8	PTR	host-156.192.8.0-static.tedata.net
156.192.0.9	PTR	host-156.192.9.0-static.tedata.net
156.192.1.62	PTR	host-156.192.62.1-static.tedata.net