Robtex

Up: 86.103.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 86.103.0.0/18
Down right: 86.103.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
86.103.2.4	A	86.103.244-static.reverse.softlayer.com
86.103.4.0	PTR	46.30.0.uptime.de
86.103.4.4	PTR	vpn-s2s01.hh03.uptime.de
86.103.4.8	A+PTR	ns03.uptime.de
86.103.4.9	A+PTR	ns04.uptime.de
86.103.11.2	A+PTR	2-11-103-86.dynamic.dsl.tng.de
86.103.16.1	PTR	dummy.tng.de
86.103.16.171	A	stadtwerke-in-lueneburg.de
86.103.16.171	A	xn--stadtwerke-lneburg-x6b.de
86.103.16.171	A	stadtnetze-barmstedt.de
86.103.16.177	PTR	mail.stadtwerke-barmstedt.de
86.103.16.177	A	mail.xn--stadtwerke-in-lneburg-nic.de
86.103.16.183	A	stadtwerke-in-lueneburg.de
86.103.16.183	A	xn--stadtwerke-lneburg-x6b.de
86.103.16.183	A	stadtnetze-barmstedt.de
86.103.17.131	A+PTR	mail.xitylight.net
86.103.17.131	A	xitylight.net
86.103.17.131	A	outlook.xitylight.net
86.103.17.162	A+PTR	smtp2.bcrz.de
86.103.17.226	PTR	server226.itmoves.net
86.103.17.228	PTR	server228.itmoves.net
86.103.18.245	A+PTR	245.18.103.86.dsl.xitylight.de
86.103.20.46	A	travel-card.net
86.103.20.68	A+PTR	68.20.103.86.dsl.xitylight.de
86.103.22.196	A	aeoiu.eu
86.103.23.2	A	2.23.103.86.dsl.xitylight.de
86.103.23.2	A	lutzhorn.net
86.103.23.3	A	mail.grimm-gmbh.de
86.103.23.18	A	x.am-dataconsult.de
86.103.23.22	PTR	22.23.103.86.dsl.xitylight.de
86.103.25.0	A	0.25.103.86.dsl.xitylight.de