Robtex

Up: 172.241.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 172.241.140.0/23
Down right: 172.241.142.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
172.241.140.18	A	localhost.admin.shanghairave.com
172.241.140.18	A	shanghairave.com
172.241.140.19	A	texz11.com
172.241.140.20	A	localhost.admin.baopi.biz
172.241.140.20	A	mail.baopi.biz
172.241.140.20	A	zemdialer.com
172.241.140.60	A+PTR	frak.upsideout.com
172.241.140.62	A+PTR	frak.upsideout.com
172.241.140.70	PTR	frak.upsideout.com
172.241.140.70	A	ns1.foxvpn.net
172.241.140.182	A	accel.east.us.f.dft-cdn42.net
172.241.140.193	PTR	v218.er01.nyc.as15003.net
172.241.140.193	A	geolyca.com
172.241.140.193	A	image1.octophor.com
172.241.140.208	A+PTR	askjhkd.malagasnews.com
172.241.140.212	A	ns2.pptwap.org
172.241.140.212	A	pptwap.club
172.241.140.212	A	angkapetruk.com
172.241.140.223	A+PTR	ykbqvciglrn.malagasnews.com
172.241.140.223	A	mx.malagasnews.com
172.241.140.224	A+PTR	server.hospedagem.top
172.241.140.224	A	ns3.hospedagem.top
172.241.140.224	A	doutorwordpress.com.br
172.241.140.228	A	140228.w3acbdqwerty.xyz
172.241.140.228	A	140228.w3trackqwerty.club
172.241.140.228	A	rtb.web3.group
172.241.140.239	A	ns1.hostlife.us
172.241.140.239	A	iraqstar.live
172.241.140.239	A	mail.hostlife.us
172.241.141.4	PTR	172.241.141.4.rdns.cloudradium.com
172.241.141.208	PTR	172.241.141.208.rdns.ubiquity.io
172.241.142.2	PTR	172.241.142.2.rdns.as15003.net
172.241.142.17	PTR	172.241.142.17.rdns.as15003.net
172.241.142.49	PTR	172.241.142.49.rdns.as15003.net
172.241.142.98	PTR	172.241.142.98.rdns.as15003.net
172.241.142.162	PTR	172.241.142.162.rdns.as15003.net
172.241.142.203	PTR	172.241.142.203.rdns.as15003.net
172.241.142.206	PTR	172.241.142.206.rdns.as15003.net
172.241.142.221	PTR	172.241.142.221.rdns.as15003.net
172.241.142.234	PTR	172.241.142.234.rdns.as15003.net