Robtex

Up: 121.96.51.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 121.96.51.128/26
Down right: 121.96.51.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.96.51.130	PTR	121.96.51.130.bti.net.ph
121.96.51.163	PTR	121.96.51.163.bti.net.ph
121.96.51.163	A	tosphil.com.ph
121.96.51.163	A	scminc.com.ph
121.96.51.165	PTR	mx10.ptc.com.ph
121.96.51.165	A	mx20.fantastikphils.com
121.96.51.165	A	mx20.tosphil.com.ph
121.96.51.169	PTR	mx20.ptc.com.ph
121.96.51.171	PTR	mx20.ptc.com.ph
121.96.51.173	PTR	mx10.ptchealth.com.ph
121.96.51.175	PTR	mx10.ptcat.com.ph
121.96.51.177	PTR	mx10.tosphil.com.ph
121.96.51.179	PTR	121.96.51.179.bti.net.ph
121.96.51.184	PTR	121.96.51.184.bti.net.ph
121.96.51.184	A	ptchealth.com.ph
121.96.51.187	PTR	121.96.51.187.bti.net.ph
121.96.51.187	A	swedconmanila.com
121.96.51.188	PTR	121.96.51.188.bti.net.ph
121.96.51.188	A	integrity.ptc.com.ph