Robtex

Up: 80.242.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 80.242.176.0/21
Down right: 80.242.184.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.242.176.50	PTR	dns01.resisto-it.de
80.242.177.18	A	gipdemo018.gip.com
80.242.177.50	A	gipdemo050.gip.com
80.242.177.66	A+PTR	mailgw.gip.com
80.242.177.66	A	gipdemo066.gip.com
80.242.177.82	A+PTR	gipdemo082.gip.com
80.242.178.4	A	lan.mainz-kom.net
80.242.178.5	A	virusscan.mainz-kom.net
80.242.178.6	A	caesar.mainz-kom.net
80.242.178.7	A	mayestix.mainz-kom.net
80.242.179.134	A	cnetsxahhenke.ddns.net
80.242.179.230	PTR	mail.reimold-umzug.com
80.242.179.230	A	reimold-umzug.com
80.242.179.230	A	reimold-umzug.de
80.242.180.1	A	nmaiz-iblox04.zdf.de
80.242.180.16	PTR	sslvpn-test.zdf.de
80.242.180.16	A+PTR	vpn02.zdf.de
80.242.180.55	PTR	3sat.de
80.242.180.70	PTR	3-sat.de
80.242.180.80	PTR	inmail.zdf.de
80.242.180.87	PTR	phoenix.de
80.242.180.92	A	htest-streaming.zdf.de
80.242.180.93	A+PTR	mrtest-streaming.zdf.de
80.242.180.94	A	wintest1.zdf.de
80.242.180.95	A	wtest-streaming.zdf.de
80.242.180.122	A	xn--3sat-brse-57a.de
80.242.180.122	A	nellynet.de
80.242.180.122	A	tivi-logo.de
80.242.180.240	A+PTR	outbound.zdf.de
80.242.180.250	A	nslp02.zdf.de
80.242.180.251	A	nslp02.zdf.de
80.242.180.253	A	lp2.zdf.de
80.242.182.135	A	apsec.itecon-rz.de
80.242.182.137	A	registrar.itecon.de
80.242.182.140	A	webmail.first-class-email.de
80.242.182.145	A	ihr-crm.com
80.242.182.146	A	mail.northchannelbank.com
80.242.182.177	A	mail.itecon.de
80.242.182.181	PTR	smtp01.itecon.de
80.242.182.181	A	sp-006.itecon.com
80.242.182.181	A	mail.itecon-fs.de
80.242.182.182	PTR	smtp02.itecon.de
80.242.182.218	A	wpmc.de
80.242.182.218	A	wpmconsult.net
80.242.182.218	A	wpmconsult.de
80.242.183.14	A+PTR	herz-jesu-kirche.de
80.242.185.39	A	day1srv.dayone.de
80.242.185.39	A	intra.dayone.de
80.242.185.168	A	postman.skydsl-global.net
80.242.191.20	A	euford.nl