Robtex

Up: 194.50.102.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 194.50.102.0/25
Down right: 194.50.102.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.50.102.3	A+PTR	mail1.binck.com
194.50.102.3	A	mail.alexportugal.nl
194.50.102.3	A	mail.tomtrading.nl
194.50.102.4	A	mail.alexportugal.nl
194.50.102.4	A	mail.tomtrading.nl
194.50.102.4	A	mail.shares.nl
194.50.102.17	A	mailhost.messagent.alex.nl
194.50.102.17	A	messagent.alex.nl
194.50.102.20	PTR	www2.binck.nl
194.50.102.20	A	pro-download.alex.nl
194.50.102.22	A+PTR	update.alex.nl
194.50.102.23	PTR	streaming2.binck.nl
194.50.102.23	A	update.binck.nl
194.50.102.24	PTR	www2.binck.com
194.50.102.34	A	sync.binck.com
194.50.102.43	A	mail1-new.binck.com
194.50.102.44	A	mail2-new.binck.com
194.50.102.50	A+PTR	selligent.alex.nl
194.50.102.51	A+PTR	selligent.binck.nl
194.50.102.53	A+PTR	selligent.binck.fr