Robtex

Up: 203.161.158.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.161.158.0/25
Down right: 203.161.158.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.161.158.2	A+PTR	cartman.pipenetworks.com
203.161.158.3	PTR	mrtg.pipenetworks.com
203.161.158.3	A	kyle.pipenetworks.com
203.161.158.4	A	www.demand.com.au
203.161.158.5	A+PTR	backup.pipenetworks.com
203.161.158.6	A+PTR	mx1.pipenetworks.com
203.161.158.6	A	postfix.pipenetworks.com
203.161.158.6	A	mail.pipenetworks.com
203.161.158.7	PTR	www.pipenetworks.com
203.161.158.7	A	pipenetworks.net
203.161.158.7	A	pipeinternational.net
203.161.158.8	A+PTR	mx2.pipenetworks.com
203.161.158.8	A	postfix.pipenetworks.com
203.161.158.8	A	mail.pipenetworks.com
203.161.158.9	PTR	lists.ausnog.net
203.161.158.11	A+PTR	ns1.pipenetworks.com
203.161.158.13	A+PTR	portal.pipenetworks.com
203.161.158.15	PTR	lg.pipenetworks.com