Robtex

Up: 172.245.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 172.245.0.0/23
Down right: 172.245.2.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
172.245.0.7	PTR	172-245-0-7-host.colocrossing.com
172.245.0.16	PTR	172-245-0-16-host.colocrossing.com
172.245.0.22	PTR	172-245-0-22-host.colocrossing.com
172.245.0.45	PTR	172-245-0-45-host.colocrossing.com
172.245.0.58	PTR	172-245-0-58-host.colocrossing.com
172.245.0.59	PTR	172-245-0-59-host.colocrossing.com
172.245.0.74	PTR	172-245-0-74-host.colocrossing.com
172.245.0.90	PTR	172-245-0-90-host.colocrossing.com
172.245.0.101	PTR	172-245-0-101-host.colocrossing.com
172.245.0.117	PTR	172-245-0-117-host.colocrossing.com
172.245.0.127	PTR	172-245-0-127-host.colocrossing.com
172.245.0.152	PTR	172-245-0-152-host.colocrossing.com
172.245.0.158	PTR	172-245-0-158-host.colocrossing.com
172.245.0.165	PTR	172-245-0-165-host.colocrossing.com
172.245.0.167	PTR	172-245-0-167-host.colocrossing.com
172.245.0.185	PTR	172-245-0-185-host.colocrossing.com
172.245.0.200	PTR	172-245-0-200-host.colocrossing.com
172.245.0.229	PTR	172-245-0-229-host.colocrossing.com
172.245.0.252	PTR	172-245-0-252-host.colocrossing.com
172.245.1.10	PTR	172-245-1-10-host.colocrossing.com
172.245.1.10	A	www.bougetoi.fr
172.245.1.11	A	tel-cantal.com
172.245.1.11	A	undimanchealacampagne.fr
172.245.1.11	A	hotel-du-bearn.fr
172.245.1.12	A	clvd.fr
172.245.1.12	A	www.clvd.fr
172.245.1.12	A	www.martinweil.fr
172.245.1.36	A+PTR	qrbds9.com
172.245.1.36	A	ns1.qrbds9.com
172.245.1.36	A	ns2.qrbds9.com
172.245.1.98	PTR	172-245-1-98-host.colocrossing.com
172.245.1.98	A	ns1.codwebhosting.com
172.245.1.99	A	dc-a16be10abc24.ocraddict.com
172.245.1.102	A	codpool.com
172.245.1.175	PTR	172-245-1-175-host.colocrossing.com
172.245.1.233	PTR	172-245-1-233-host.colocrossing.com
172.245.1.247	PTR	172-245-1-247-host.colocrossing.com
172.245.2.18	PTR	vdl.relationshipmake.com
172.245.2.31	PTR	pous.relationshipmake.com
172.245.2.40	PTR	hull.relationshipmake.com
172.245.2.46	PTR	bergen.relationshipmake.com
172.245.2.49	PTR	remseck.relationshipmake.com
172.245.2.129	PTR	iti.relationshipmake.com
172.245.2.130	PTR	dkrlfv.relationshipmake.com
172.245.2.178	PTR	zenit.relationshipmake.com
172.245.2.179	PTR	sulfona.relationshipmake.com
172.245.2.205	PTR	puteaux.relationshipmake.com
172.245.2.206	PTR	roundedf.relationshipmake.com
172.245.2.215	PTR	rigidly.relationshipmake.com
172.245.2.219	PTR	concluye.relationshipmake.com
172.245.2.226	PTR	geteup.relationshipmake.com
172.245.2.228	PTR	claimin.relationshipmake.com
172.245.2.233	PTR	dialing.relationshipmake.com
172.245.2.243	PTR	lsev.relationshipmake.com
172.245.2.248	PTR	172-245-2-248-host.colocrossing.com
172.245.3.0	PTR	172-245-3-0-host.colocrossing.com
172.245.3.41	PTR	172-245-3-41-host.colocrossing.com
172.245.3.46	PTR	172-245-3-46-host.colocrossing.com
172.245.3.94	PTR	172-245-3-94-host.colocrossing.com
172.245.3.143	PTR	172-245-3-143-host.colocrossing.com
172.245.3.178	PTR	172-245-3-178-host.colocrossing.com
172.245.3.197	PTR	172-245-3-197-host.colocrossing.com
172.245.3.255	PTR	172-245-3-255-host.colocrossing.com