Robtex

Up: 67.220.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 67.220.72.0/23
Down right: 67.220.74.0/23

IP	Type	Hostname
67.220.72.0	A+PTR	0.72.220.67.static.awknet.com
67.220.72.3	A+PTR	s3-72.static.awknet.com
67.220.72.23	A	got.this.box.from.f00net.com
67.220.72.29	PTR	blow.me.my.s1av3.info
67.220.72.55	A+PTR	s55-72.static.awknet.com
67.220.72.55	A	55.72.220.67.static.awknet.com
67.220.72.70	A+PTR	70.72.220.67.static.awknet.com
67.220.72.83	A+PTR	turns.u.0n.never.0ff.us
67.220.72.91	A+PTR	91.72.220.67.static.awknet.com
67.220.72.94	PTR	94.72.220.67.static.awknet.com
67.220.72.94	A	irc.datawhore.net
67.220.72.95	A+PTR	95.72.220.67.static.awknet.com
67.220.72.98	A+PTR	98.72.220.67.static.awknet.com
67.220.72.118	A+PTR	s118-72.static.awknet.com
67.220.72.124	A+PTR	124.72.220.67.static.awknet.com
67.220.72.127	A+PTR	127.72.220.67.static.awknet.com
67.220.72.131	A+PTR	131.72.220.67.static.awknet.com
67.220.72.135	PTR	virtual.sh3lls.net
67.220.72.138	PTR	virtual.sh3lls.net
67.220.72.155	PTR	virtual.sh3lls.net
67.220.72.161	PTR	161.72.220.67.static.awknet.com
67.220.72.162	PTR	virtual.sh3lls.net
67.220.72.163	A+PTR	163.72.220.67.static.awknet.com
67.220.73.0	A	0.73.220.67.static.awknet.com
67.220.73.3	A+PTR	s3-73.static.awknet.com
67.220.73.10	PTR	10-73-220-67.static.awknet.com
67.220.73.11	PTR	11-73-220-67.static.awknet.com
67.220.73.11	A	bad.example.co.in
67.220.73.29	PTR	29-73-220-67.static.awknet.com
67.220.73.45	PTR	45-73-220-67.static.awknet.com
67.220.73.164	PTR	164-73-220-67.static.awknet.com
67.220.73.181	A	disappeared.n0w.org.uk
67.220.74.0	PTR	s0-74.static.awknet.us
67.220.74.0	A	0.74.220.67.static.awknet.com
67.220.74.3	A	made.an.exploit.for.sftp.us
67.220.74.7	PTR	7-74-220-67.static.awknet.com
67.220.74.11	A	sucky.shell-provider.org
67.220.74.17	PTR	s17-74.static.awknet.us
67.220.74.17	A	17.74.220.67.static.awknet.com
67.220.74.30	PTR	30-74-220-67.static.awknet.com
67.220.74.34	PTR	34-74-220-67.static.awknet.com
67.220.74.44	A+PTR	s44-74.static.awknet.com
67.220.74.46	PTR	46-74-220-67.static.awknet.com
67.220.74.50	A+PTR	50.74.220.67.static.awknet.com
67.220.74.55	A+PTR	s55-74.static.awknet.com
67.220.74.70	A+PTR	70.74.220.67.static.awknet.com
67.220.74.71	PTR	71-74-220-67.static.awknet.com
67.220.74.71	A	vlife2.virtualife.com.br
67.220.74.72	A+PTR	72.74.220.67.static.awknet.com
67.220.74.77	A+PTR	77.74.220.67.static.awknet.com
67.220.74.80	PTR	virtual.sh3lls.net
67.220.74.114	PTR	virtual.sh3lls.net
67.220.74.116	A+PTR	116.74.220.67.static.awknet.com
67.220.74.140	PTR	virtual.sh3lls.net
67.220.74.144	PTR	virtual.sh3lls.net
67.220.74.146	A+PTR	146.74.220.67.static.awknet.com
67.220.74.153	PTR	153.74.220.67.static.awknet.com
67.220.74.167	PTR	virtual.sh3lls.net
67.220.74.168	PTR	virtual.sh3lls.net
67.220.75.0	PTR	s0-75.static.awknet.us
67.220.75.2	A	storm.sh3lls.net
67.220.75.2	A	driveresults.press
67.220.75.5	PTR	blacna.lenialg.co.uk
67.220.75.5	A	ns1.coloredface.host
67.220.75.6	A	ns2.coloredface.host
67.220.75.12	A+PTR	12.75.220.67.static.awknet.com
67.220.75.42	PTR	42.75.220.67.static.awknet.com
67.220.75.45	PTR	45.75.220.67.static.awknet.com
67.220.75.59	PTR	haha.you.have.no.make-world.info
67.220.75.71	A	relaybot.sh3lls.net
67.220.75.76	A+PTR	s76-75.static.awknet.com
67.220.75.91	A	mail.fulgeru.ro
67.220.75.106	A+PTR	106.75.220.67.static.awknet.com
67.220.75.112	A+PTR	112.75.220.67.static.awknet.com
67.220.75.113	A+PTR	113.75.220.67.static.awknet.com
67.220.75.121	PTR	121.75.220.67.static.awknet.com
67.220.75.130	A	admin.xbox-scene.com
67.220.75.136	A+PTR	s136-75.static.awknet.com
67.220.75.136	A	136.75.220.67.static.awknet.com
67.220.75.140	PTR	virtual.sh3lls.net
67.220.75.141	A+PTR	141.75.220.67.static.awknet.com
67.220.75.147	PTR	147.75.220.67.static.awknet.com
67.220.75.147	A	vlife2.virtualife.com.br
67.220.75.153	PTR	virtual.sh3lls.net
67.220.75.157	A+PTR	157.75.220.67.static.awknet.com
67.220.75.161	PTR	virtual.sh3lls.net
67.220.75.162	PTR	virtual.sh3lls.net
67.220.75.166	PTR	virtual.sh3lls.net
67.220.75.167	A+PTR	167.75.220.67.static.awknet.com
67.220.75.170	PTR	virtual.sh3lls.net
67.220.75.173	PTR	virtual.sh3lls.net
67.220.75.175	PTR	175.75.220.67.static.awknet.com
67.220.75.176	PTR	virtual.sh3lls.net
67.220.75.179	PTR	virtual.sh3lls.net
67.220.75.182	A+PTR	182.75.220.67.static.awknet.com
67.220.75.183	PTR	virtual.sh3lls.net
67.220.75.184	PTR	184.75.220.67.static.awknet.com
67.220.75.190	PTR	virtual.sh3lls.net
67.220.75.255	PTR	255.75.220.67.static.awknet.com