Robtex

Up: 217.68.0.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.68.1.0/25
Down right: 217.68.1.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.68.1.6	PTR	6.1.68.217.treml-sturm.net
217.68.1.7	PTR	7.1.68.217.treml-sturm.net
217.68.1.10	A+PTR	ns1.treml-sturm.net
217.68.1.10	A	ns1.tsnet.de
217.68.1.17	PTR	17.1.68.217.treml-sturm.net
217.68.1.20	PTR	20.1.68.217.treml-sturm.net
217.68.1.23	PTR	23.1.68.217.treml-sturm.net
217.68.1.26	PTR	26.1.68.217.treml-sturm.net
217.68.1.31	PTR	31.1.68.217.treml-sturm.net
217.68.1.32	PTR	32.1.68.217.treml-sturm.net
217.68.1.33	PTR	33.1.68.217.treml-sturm.net
217.68.1.41	PTR	41.1.68.217.treml-sturm.net
217.68.1.44	PTR	44.1.68.217.treml-sturm.net
217.68.1.50	A+PTR	vhost01.ffm1.treml-sturm.net
217.68.1.50	A	www.kahnert.com
217.68.1.50	A	defenderprotects.com
217.68.1.52	PTR	52.1.68.217.treml-sturm.net
217.68.1.53	A+PTR	www.hmh-transporte.de
217.68.1.54	PTR	www.bickhardt-bau.de
217.68.1.54	A	www.mkw-naumburg.de
217.68.1.56	PTR	56.1.68.217.treml-sturm.net
217.68.1.59	PTR	59.1.68.217.treml-sturm.net
217.68.1.60	PTR	60.1.68.217.treml-sturm.net
217.68.1.66	PTR	www.begemannschule.de
217.68.1.69	PTR	69.1.68.217.treml-sturm.net
217.68.1.72	PTR	72.1.68.217.treml-sturm.net
217.68.1.73	PTR	73.1.68.217.treml-sturm.net
217.68.1.74	PTR	virt01.wiesinginvestments.com
217.68.1.75	A+PTR	srv01.wendelstein-llp.com
217.68.1.78	PTR	78.1.68.217.treml-sturm.net
217.68.1.81	PTR	81.1.68.217.treml-sturm.net
217.68.1.86	PTR	86.1.68.217.treml-sturm.net
217.68.1.90	PTR	90.1.68.217.treml-sturm.net
217.68.1.91	PTR	91.1.68.217.treml-sturm.net
217.68.1.92	PTR	92.1.68.217.treml-sturm.net
217.68.1.93	PTR	93.1.68.217.treml-sturm.net
217.68.1.94	PTR	94.1.68.217.treml-sturm.net
217.68.1.98	PTR	98.1.68.217.treml-sturm.net
217.68.1.100	A+PTR	backup-mx.treml-sturm.de
217.68.1.100	A	backup-mx.ffm1.treml-sturm.net
217.68.1.101	A+PTR	backup-mx01.ffm1.treml-sturm.net
217.68.1.104	PTR	smtp-relay01.ffm1.treml-sturm.net
217.68.1.106	A+PTR	smtp-relay.treml-sturm.de
217.68.1.106	A	smtp-relay.ffm1.treml-sturm.net
217.68.1.116	PTR	116.1.68.217.treml-sturm.net
217.68.1.129	A+PTR	ns02.adamhall.com
217.68.1.131	PTR	131.1.68.217.treml-sturm.net
217.68.1.136	PTR	136.1.68.217.treml-sturm.net
217.68.1.148	PTR	148.1.68.217.treml-sturm.net
217.68.1.150	PTR	150.1.68.217.treml-sturm.net
217.68.1.168	PTR	168.1.68.217.treml-sturm.net
217.68.1.177	PTR	177.1.68.217.treml-sturm.net
217.68.1.199	PTR	199.1.68.217.treml-sturm.net
217.68.1.204	PTR	204.1.68.217.treml-sturm.net
217.68.1.213	PTR	213.1.68.217.treml-sturm.net
217.68.1.218	PTR	218.1.68.217.treml-sturm.net
217.68.1.234	PTR	234.1.68.217.treml-sturm.net
217.68.1.242	PTR	242.1.68.217.treml-sturm.net