Robtex

Up: 117.4.128.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 117.4.132.0/23
Down right: 117.4.134.0/23

IP	Type	Hostname
117.4.132.11	PTR	localhost
117.4.132.38	PTR	localhost
117.4.132.47	PTR	localhost
117.4.132.54	PTR	localhost
117.4.132.68	PTR	localhost
117.4.132.78	PTR	localhost
117.4.132.95	PTR	localhost
117.4.132.104	PTR	localhost
117.4.132.127	PTR	localhost
117.4.132.160	PTR	localhost
117.4.132.181	PTR	localhost
117.4.132.247	PTR	localhost
117.4.132.255	PTR	localhost
117.4.133.227	PTR	localhost
117.4.134.9	PTR	localhost
117.4.134.42	PTR	localhost
117.4.134.46	PTR	localhost
117.4.134.66	PTR	localhost
117.4.134.68	PTR	localhost
117.4.134.108	PTR	localhost
117.4.134.121	PTR	localhost
117.4.134.151	PTR	localhost
117.4.134.162	PTR	localhost
117.4.134.178	PTR	localhost
117.4.134.183	PTR	localhost
117.4.134.193	PTR	localhost
117.4.134.216	PTR	localhost
117.4.134.239	PTR	localhost
117.4.134.244	PTR	localhost
117.4.134.251	PTR	localhost
117.4.135.4	PTR	localhost
117.4.135.10	PTR	localhost
117.4.135.46	PTR	localhost
117.4.135.66	PTR	localhost
117.4.135.70	PTR	localhost
117.4.135.74	PTR	localhost
117.4.135.107	PTR	localhost
117.4.135.140	PTR	localhost
117.4.135.144	PTR	localhost
117.4.135.155	PTR	localhost
117.4.135.161	PTR	localhost
117.4.135.167	PTR	localhost
117.4.135.168	PTR	localhost
117.4.135.177	PTR	localhost
117.4.135.192	PTR	localhost
117.4.135.215	PTR	localhost
117.4.135.224	PTR	localhost
117.4.135.228	PTR	localhost
117.4.135.240	PTR	localhost
117.4.135.243	PTR	localhost
117.4.135.244	PTR	localhost
117.4.135.248	PTR	localhost
117.4.135.251	PTR	localhost