Robtex

Up: 89.146.38.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 89.146.39.0/25
Down right: 89.146.39.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.146.39.0	PTR	rt39bb146-89-0.routit.net
89.146.39.6	PTR	rt39bb146-89-6.routit.net
89.146.39.6	A	mail.midlandtyres.nl
89.146.39.6	A	midlandtyres.nl
89.146.39.7	PTR	rt39bb146-89-7.routit.net
89.146.39.7	A	tgbj9rb9651ssedgoh66rbddhcrektd7.gieterij-doesburg.com
89.146.39.7	A	gietburggroup.nl
89.146.39.8	A+PTR	mail.fenfverpakkingen.nl
89.146.39.10	A	mail.vabix.nl
89.146.39.11	A	mail.smiemansprojecten.com
89.146.39.42	A	mail.tapemotions.com
89.146.39.58	PTR	mail.verwoert.nl
89.146.39.76	A	mail.natec.nl
89.146.39.76	A	mail.natec.be
89.146.39.100	A+PTR	smtp.ucsystems.net
89.146.39.104	A	webmail.ucsystems.net
89.146.39.110	PTR	rt39bb146-89-110.routit.net
89.146.39.110	A	eezzee.nl
89.146.39.110	A	mx1.ucsystems.nl
89.146.39.112	PTR	dc-281.ucsystems.net
89.146.39.112	A	tec-global.nl
89.146.39.112	A	mx1.ucsystems.net
89.146.39.113	A+PTR	dc-282.ucsystems.net
89.146.39.113	A	mx1.ucsystems.net
89.146.39.113	A	mx2.ucsystems.net
89.146.39.116	PTR	rt39bb146-89-116.routit.net
89.146.39.116	A	herbeton.com
89.146.39.116	A	laverdaworkshop.com
89.146.39.129	PTR	rt39bb146-89-129.routit.net
89.146.39.129	A	kantoor.softtech.nl
89.146.39.155	A	mail1.antropia.nl
89.146.39.158	A+PTR	mail.vdlo.nl
89.146.39.168	A	mail.mercuurbouw.nl
89.146.39.169	PTR	rt39bb146-89-169.routit.net
89.146.39.169	A	mail.sure.nu
89.146.39.169	A	mail.sure123.nl
89.146.39.182	PTR	mail.rva.nl
89.146.39.249	PTR	rt39bb146-89-249.routit.net
89.146.39.249	A	intern.pwa-it.nl
89.146.39.255	PTR	rt39bb146-89-255.routit.net