Robtex

Up: 80.249.174.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.249.174.0/25
Down right: 80.249.174.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.249.174.1	PTR	medusa.naviextras.com
80.249.174.3	PTR	tisiphone.naviextras.com
80.249.174.3	A	toz.hu
80.249.174.4	PTR	ada.dpx.naviextras.com
80.249.174.4	A	mx.navextras.com
80.249.174.4	A	navextras.info
80.249.174.5	A	mx.navextras.com
80.249.174.5	A	mx.naviextra.com
80.249.174.5	A	nsa.naviextras.hu
80.249.174.6	PTR	carla.dpx.naviextras.com
80.249.174.6	A	nsa.naviextras.hu
80.249.174.6	A	nsa.navextras.eu
80.249.174.10	PTR	gina.naviextras.com
80.249.174.10	A	register.navngo.com
80.249.174.16	PTR	ada-b.naviextras.com
80.249.174.16	A	zippy.naviextras.com
80.249.174.55	A	onlinecamera.eu
80.249.174.55	A	onlinecamera.net
80.249.174.58	A	ceracom.hu
80.249.174.60	A	gepida.de
80.249.174.61	PTR	gw.naviextras.com
80.249.174.62	PTR	gwa.naviextras.com
80.249.174.68	PTR	audrey.dpx.naviextras.com
80.249.174.68	A	mx.navextras.com
80.249.174.68	A	navextras.info
80.249.174.69	PTR	brenda.dpx.naviextras.com
80.249.174.69	A	nsb.naviextras.org
80.249.174.69	A	nsb.naviextra.eu
80.249.174.70	PTR	cleo.dpx.naviextras.com
80.249.174.70	A	nsb.naviextras.org
80.249.174.70	A	nsb.naviextra.eu
80.249.174.74	PTR	grace.naviextras.com
80.249.174.74	A	register.navngo.com
80.249.174.80	PTR	audrey-b.dpx.naviextras.com
80.249.174.80	A	zippy.naviextras.com
80.249.174.126	A+PTR	gwb.naviextras.com
80.249.174.219	A	girlsrimming.com
80.249.174.234	A	lvs.kwindoo.com