Robtex

Up: 212.159.220.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.159.221.0/25
Down right: 212.159.221.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.159.221.43	A+PTR	smtpgate-nl1.iresources.biz
212.159.221.43	A	mail10.fitvermogen.nl
212.159.221.44	A+PTR	smtpgate-nl2.iresources.biz
212.159.221.44	A	mail20.fitvermogen.nl
212.159.221.200	A	nomadas2test.com
212.159.221.200	A	nomad4snow.com
212.159.221.200	A	nomadas2prelive.com
212.159.221.205	A+PTR	smtpscan-nl1.ifg.nl.ext.origin-asp.com
212.159.221.205	A+PTR	mx1.iglo.com
212.159.221.205	A	mx1.birdseyeiglo.com
212.159.221.206	PTR	mx2.iglo.com
212.159.221.206	A	mx2.birdseye.ie
212.159.221.206	A	mx2.birdseyeiglo.com