Robtex

Up: 172.245.16.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 172.245.18.0/24
Down right: 172.245.19.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
172.245.18.2	PTR	host.colocrossing.com
172.245.18.11	PTR	172-245-18-11-host.colocrossing.com
172.245.18.47	PTR	172-245-18-47-host.colocrossing.com
172.245.18.50	PTR	172-245-18-50-host.colocrossing.com
172.245.18.129	PTR	172-245-18-129-host.colocrossing.com
172.245.18.130	PTR	host.colocrossing.com
172.245.18.164	A	mail.magentoboost.com
172.245.18.217	PTR	172-245-18-217-host.colocrossing.com
172.245.19.3	A	illionaire.org
172.245.19.4	PTR	172-245-19-4-host.colocrossing.com
172.245.19.4	A	dc-01b5e704.carolynpetersen.com
172.245.19.5	A	digisplints.com
172.245.19.7	PTR	172-245-19-7-host.colocrossing.com
172.245.19.7	A	newworldorder.us
172.245.19.10	PTR	172-245-19-10-host.colocrossing.com
172.245.19.10	A	getatthepark.com
172.245.19.10	A	hempnurse.com
172.245.19.35	PTR	172-245-19-35-host.colocrossing.com
172.245.19.35	A	ns1.dynname.ru
172.245.19.45	PTR	172-245-19-45-host.colocrossing.com
172.245.19.50	A	browserpix.com
172.245.19.85	PTR	172-245-19-85-host.colocrossing.com
172.245.19.100	PTR	172-245-19-100-host.colocrossing.com
172.245.19.100	A	ns2.grow-server.com
172.245.19.101	PTR	172-245-19-101-host.colocrossing.com
172.245.19.101	A	ns7.arakida-server.gratis
172.245.19.101	A	ns2.asianamateurpost.com
172.245.19.102	PTR	172-245-19-102-host.colocrossing.com
172.245.19.102	A	gutteruncensored.me
172.245.19.102	A	mail.gutteruncensored.info
172.245.19.107	PTR	172-245-19-107-host.colocrossing.com
172.245.19.107	A	smadacm.com
172.245.19.107	A	mail.smadacm.com
172.245.19.109	A+PTR	trump.imoorednshost.com
172.245.19.109	A	ns2.imoorednshost.com
172.245.19.109	A	com-account-limited.support
172.245.19.110	PTR	sengridbase.club
172.245.19.110	A	ns2.kuvuvuviland-server.com
172.245.19.110	A	ns4.kuvuvuviland-server.com
172.245.19.111	PTR	172-245-19-111-host.colocrossing.com
172.245.19.111	A	6f0453facdfa86652de89c8d4d9299c7-id.com
172.245.19.111	A	mail-edb.com
172.245.19.112	PTR	webmail.zaratrading.tech
172.245.19.112	A	zaratrading.tech
172.245.19.113	PTR	172-245-19-113-host.colocrossing.com
172.245.19.113	A	webservice-verification-cscr.com
172.245.19.114	PTR	172-245-19-114-host.colocrossing.com
172.245.19.120	PTR	172-245-19-120-host.colocrossing.com
172.245.19.125	A	shangke1988.win
172.245.19.136	PTR	172-245-19-136-host.colocrossing.com
172.245.19.140	PTR	172-245-19-140-host.colocrossing.com
172.245.19.140	A	www.shoukmei.com
172.245.19.143	PTR	172-245-19-143-host.colocrossing.com
172.245.19.143	A	thrillerbooksfree.com
172.245.19.149	PTR	172-245-19-149-host.colocrossing.com
172.245.19.149	A	www.xuantongxt.com
172.245.19.165	PTR	172-245-19-165-host.colocrossing.com
172.245.19.175	PTR	172-245-19-175-host.colocrossing.com
172.245.19.176	PTR	172-245-19-176-host.colocrossing.com
172.245.19.196	PTR	172-245-19-196-host.colocrossing.com
172.245.19.196	A	canapedarg.info