Robtex

Up: 185.89.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.89.196.0/23
Down right: 185.89.198.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.89.196.10	PTR	mx1.mastersmail.com
185.89.196.10	PTR	web01.masterssystems.com
185.89.196.10	A	mail.tranter.pl
185.89.196.12	A	opendataportal.at
185.89.196.12	A	data.or.at
185.89.196.12	A	open-data-portal.net
185.89.196.13	PTR	node1.freifunk-3laendereck.net
185.89.196.20	A	ns1.mastersdns.com
185.89.196.20	A	ns1.masterssystems.com
185.89.196.100	A	phoenix-entgiftung.de
185.89.196.101	A	zaphod.q-ix.net
185.89.196.101	A	leonweber.de
185.89.196.101	A	ns1.q-ix.net
185.89.196.105	PTR	mail.wikimedia.ch
185.89.196.105	A	*.wikimedia.ch
185.89.196.105	A	wikilovesmonuments.li
185.89.196.106	PTR	mail.wikimedia.at
185.89.196.107	PTR	mail.wikihosting.at
185.89.196.108	A+PTR	srv0108.masterssystems.com
185.89.196.108	PTR	srv0108.wikihosting.at
185.89.196.108	A	petra-doehler.de
185.89.196.109	A+PTR	gw4.freifunk-3laendereck.net
185.89.197.10	PTR	web02.masterssystems.com
185.89.197.10	A	mx2.mastersmail.com
185.89.197.10	A	all-things-open.org
185.89.197.11	PTR	node2.dancing24.net
185.89.197.13	A+PTR	node2.freifunk-3laendereck.net
185.89.197.13	A	ns1.fftut.de
185.89.197.13	A	ns1.ff3l.net
185.89.197.20	A	ns2.masterssystems.com
185.89.197.20	A	ns2.mastersdns.com
185.89.197.100	A	phoenix-entgiftung.de
185.89.197.101	A	www.tntnet.org
185.89.197.101	A	*.tntnet.org
185.89.197.101	A	mail.tntnet.org