Robtex

Up: 107.172.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 107.172.80.0/23
Down right: 107.172.82.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
107.172.80.60	PTR	107-172-80-60-host.colocrossing.com
107.172.80.60	A	artmoviecat.com
107.172.80.70	PTR	107-172-80-70-host.colocrossing.com
107.172.80.70	A	catindia.net
107.172.80.76	PTR	107-172-80-76-host.colocrossing.com
107.172.80.131	PTR	107-172-80-131-host.colocrossing.com
107.172.80.131	A	icontvonline.com
107.172.80.137	PTR	107-172-80-137-host.colocrossing.com
107.172.80.137	A	nullmx.iconmessenger.com
107.172.80.140	PTR	107-172-80-140-host.colocrossing.com
107.172.80.140	A	www.crpindi.co.in
107.172.80.140	A	crpindi.co.in
107.172.80.142	PTR	107-172-80-142-host.colocrossing.com
107.172.80.142	A	win3.servidorhostbr.com
107.172.80.142	A	saubali.com
107.172.80.163	PTR	107-172-80-163-host.colocrossing.com
107.172.80.166	PTR	107-172-80-166-host.colocrossing.com
107.172.80.168	PTR	107-172-80-168-host.colocrossing.com
107.172.80.168	A	sjtaxbook.com
107.172.80.168	A	selfifashion.com
107.172.80.170	PTR	107-172-80-170-host.colocrossing.com
107.172.80.235	PTR	107-172-80-235-host.colocrossing.com
107.172.80.248	PTR	107-172-80-248-host.colocrossing.com
107.172.80.253	PTR	107-172-80-253-host.colocrossing.com
107.172.81.177	PTR	107-172-81-177-host.colocrossing.com
107.172.81.186	PTR	107-172-81-186-host.colocrossing.com
107.172.81.192	PTR	107-172-81-192-host.colocrossing.com
107.172.81.209	PTR	107-172-81-209-host.colocrossing.com
107.172.81.214	PTR	107-172-81-214-host.colocrossing.com
107.172.82.77	PTR	107-172-82-77-host.colocrossing.com
107.172.82.77	A	365vipbc.com
107.172.82.198	PTR	stratusliberatus.com
107.172.82.198	A	mail.bithyb.com
107.172.83.94	PTR	107-172-83-94-host.colocrossing.com
107.172.83.94	A	lampval.com
107.172.83.131	PTR	107-172-83-131-host.colocrossing.com
107.172.83.131	A	*.jsj.com
107.172.83.131	A	m.indosat.com.oooo.com
107.172.83.134	PTR	107-172-83-134-host.colocrossing.com
107.172.83.134	A	jldawn.com
107.172.83.181	PTR	107-172-83-181-host.colocrossing.com
107.172.83.181	A	mf.cr.qovoq.cf
107.172.83.192	PTR	107-172-83-192-host.colocrossing.com
107.172.83.229	PTR	pwe.gethjoyousapplications.com
107.172.83.251	PTR	107-172-83-251-host.colocrossing.com
107.172.83.251	A	go.truesight.site
107.172.83.251	A	sightsense.website
107.172.83.252	PTR	107-172-83-252-host.colocrossing.com
107.172.83.252	A	ns1.sightsense.website
107.172.83.252	A	ns1.truesight.site
107.172.83.253	PTR	107-172-83-253-host.colocrossing.com
107.172.83.253	A	ns2.truesight.site
107.172.83.253	A	ns2.sightsense.website
107.172.83.254	PTR	107-172-83-254-host.colocrossing.com