Robtex

Up: 194.13.104.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 194.13.104.0/23
Down right: 194.13.106.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.13.104.17	A+PTR	mx1.ssvz.nl
194.13.104.17	A	mx2.sfg.nl
194.13.104.18	PTR	mx1.vlietlandziekenhuis.nl
194.13.104.18	A	mx2.sfvg.nl
194.13.104.18	A	mx2.franciscus.nl
194.13.104.20	PTR	vlietland-20.ssvz.nl
194.13.104.20	A	mobiel.ssvz.nl
194.13.104.192	PTR	vlietland-192.ssvz.nl
194.13.105.4	PTR	data-sfg-inet-4.nl
194.13.105.4	A	sfvg.nl
194.13.105.8	A	zorgverlener.sfg.nl
194.13.105.13	A	webmail.sfg.nl
194.13.105.17	A+PTR	mail.sfg.nl
194.13.105.17	A	mail.sfvg.nl
194.13.105.17	A	mail.prostaatcentrumzwn.nl
194.13.105.36	PTR	data-sfg-inet-36.nl
194.13.105.36	A	telewerken.ssvz.nl
194.13.105.41	PTR	data-sfg-inet-41.nl
194.13.105.44	PTR	data-sfg-inet-44.nl
194.13.105.249	PTR	data-sfg-inet-249.nl