Robtex

Up: 163.121.236.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 163.121.236.0/24
Down right: 163.121.237.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
163.121.236.243	PTR	host-163.121.236.243.tedata.net
163.121.237.35	PTR	host-163.121.237.35.tedata.net
163.121.237.68	PTR	host-163.121.237.68.tedata.net
163.121.237.106	A	mail.banknetics.com
163.121.237.133	A+PTR	mailgate.sumed.org
163.121.237.135	PTR	host-163.121.237.135.tedata.net
163.121.237.135	A	ns.unghimex.com
163.121.237.135	A	sumed.org
163.121.237.137	PTR	host-163.121.237.137.tedata.net
163.121.237.137	A	mail.sumed.org
163.121.237.143	PTR	rambb
163.121.237.164	PTR	mail.telecomegypt.com
163.121.237.166	PTR	host-163.121.237.166.tedata.net
163.121.237.166	A	web.te.com.eg
163.121.237.168	PTR	host-163.121.237.168.tedata.net
163.121.237.175	PTR	host-163.121.237.175.tedata.net
163.121.237.194	PTR	host-163.121.237.194.tedata.net
163.121.237.195	PTR	host-163.121.237.195.tedata.net
163.121.237.195	A	brightskytravel.biz
163.121.237.195	A	brightskytravel.net
163.121.237.198	A+PTR	mail.bright-sky.com.eg
163.121.237.202	PTR	host-163.121.237.202.tedata.net
163.121.237.203	A+PTR	mail1.bright-sky.com.eg
163.121.237.204	PTR	host-163.121.237.204.tedata.net
163.121.237.204	A	mail1.brightskytravel.net
163.121.237.205	PTR	host-163.121.237.205.tedata.net
163.121.237.206	PTR	host-163.121.237.206.tedata.net