Robtex

Up: 212.20.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 212.20.144.0/21
Down right: 212.20.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.20.144.4	A	nf09.gatel.net
212.20.144.5	A	nf10.gatel.net
212.20.144.6	A+PTR	nf11.gatel.net
212.20.144.7	A	web1.gatel.net
212.20.144.66	A	noc1.gatel.net
212.20.144.67	A	noc2.gatel.net
212.20.144.69	A	ren2.gatel.net
212.20.144.70	A	sun1.gatel.net
212.20.144.80	A	wave1.gatel.net
212.20.144.81	A	wave2.gatel.net
212.20.144.82	A	nf01.gatel.net
212.20.144.83	A+PTR	nf02.gatel.net
212.20.144.98	A	ns1.gatel.net
212.20.144.99	A+PTR	ns2.gatel.net
212.20.144.100	PTR	test-mig.gatel.de
212.20.144.100	PTR	test-mig.vpdn.de
212.20.144.100	PTR	test-mig.ga-telecom.de
212.20.146.167	A	mail.familienatlas.de
212.20.149.39	A	kurz-reisen.com
212.20.149.61	A	skoase.de
212.20.150.71	PTR	nf3200b.gatel.net
212.20.150.112	PTR	email.cogentco.com
212.20.151.177	PTR	gi9-43.2.ccr01.ham01.atlas.cogentco.com
212.20.151.246	A	hh1.de.gatel.net
212.20.151.247	A	f1.de.gatel.net
212.20.151.250	A	hh5.de.gatel.net
212.20.151.252	A	f7.de.gatel.net
212.20.152.14	PTR	e0.synventive-gw.nl.gatel.net
212.20.152.17	PTR	e0.synventive-gw.nl.gatel.net
212.20.152.254	PTR	dns1.us.gatel.net
212.20.154.212	A	f19.de.gatel.net
212.20.154.242	A	f9.de.gatel.net
212.20.155.1	PTR	munichnet.demarc.cogentco.com
212.20.155.5	PTR	klopotek-m.demarc.cogentco.com
212.20.155.22	PTR	s1-5-0.m1.de.gatel.net
212.20.155.53	PTR	yahoo-m.demarc.cogentco.com
212.20.156.228	PTR	logivision1.demarc.cogentco.com
212.20.158.34	PTR	gi9-46.230.ccr01.ham01.atlas.cogentco.com
212.20.158.54	PTR	s1-3-0.hh0.de.gatel.net
212.20.158.137	PTR	intersoft.demarc.cogentco.com
212.20.158.254	A+PTR	dns2.de.gatel.net
212.20.159.17	PTR	dsonline-fw.de.gatel.net
212.20.159.21	A	gw1-gatel.domainservice.net
212.20.159.22	A	gw2-gatel.domainservice.net
212.20.159.34	PTR	avsolutions1-gw.de.gatel.net
212.20.159.54	PTR	se3-1-4.ca01.fra01.atlas.cogentco.com
212.20.159.117	A	mail.garbanicap.de
212.20.159.117	A	mail1.de.icap.com
212.20.159.122	PTR	se2-0-9-0.ca01.fra01.atlas.cogentco.com
212.20.159.154	PTR	s1-1-0-6-0.f7.de.gatel.net
212.20.159.194	PTR	roedermark1-gw.de.gatel.net
212.20.159.237	PTR	eumetsat-gw1.de.gatel.net
212.20.159.254	A	dns1.de.gatel.net