Robtex

Up: 117.4.252.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 117.4.252.0/25
Down right: 117.4.252.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
117.4.252.2	PTR	localhost
117.4.252.6	PTR	localhost
117.4.252.11	PTR	localhost
117.4.252.12	PTR	localhost
117.4.252.18	PTR	localhost
117.4.252.20	PTR	localhost
117.4.252.23	PTR	localhost
117.4.252.25	PTR	localhost
117.4.252.30	PTR	localhost
117.4.252.32	PTR	localhost
117.4.252.34	PTR	localhost
117.4.252.51	PTR	localhost
117.4.252.67	PTR	localhost
117.4.252.71	PTR	localhost
117.4.252.72	PTR	localhost
117.4.252.93	PTR	localhost
117.4.252.94	PTR	localhost
117.4.252.98	PTR	localhost
117.4.252.111	PTR	localhost
117.4.252.117	PTR	localhost
117.4.252.124	PTR	localhost
117.4.252.130	PTR	localhost
117.4.252.132	PTR	localhost
117.4.252.139	PTR	localhost
117.4.252.139	A	ato.vn
117.4.252.139	A	rawincense.com
117.4.252.143	PTR	localhost
117.4.252.149	PTR	localhost
117.4.252.157	PTR	localhost
117.4.252.165	PTR	localhost
117.4.252.165	A	mx1.hoptackinhdoanh.vn
117.4.252.165	A	mx2.hoptackinhdoanh.vn
117.4.252.166	PTR	localhost
117.4.252.172	PTR	localhost
117.4.252.173	PTR	localhost
117.4.252.189	PTR	localhost
117.4.252.192	PTR	localhost
117.4.252.193	PTR	localhost
117.4.252.215	PTR	localhost
117.4.252.216	PTR	localhost
117.4.252.223	PTR	localhost
117.4.252.228	PTR	localhost
117.4.252.237	PTR	localhost
117.4.252.250	PTR	localhost
117.4.252.252	PTR	localhost
117.4.252.254	PTR	localhost