Robtex

Up: 193.203.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 193.203.244.0/23
Down right: 193.203.246.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.203.244.65	A	adsl-193.203.244.65.access.houxou.com
193.203.244.128	PTR	adsl-193.203.244.128.access.houxou.com
193.203.244.128	A	mail.anduin.org.uk
193.203.244.144	A	adsl-193.203.244.144.access.houxou.com
193.203.244.229	PTR	ws1-wd
193.203.244.229	A+PTR	adsl-193.203.244.229.access.houxou.com
193.203.244.241	PTR	amd-wd
193.203.244.241	PTR	amd-workstation
193.203.244.241	PTR	mycomputer
193.203.244.242	PTR	sam
193.203.244.242	A+PTR	adsl-193.203.244.242.access.houxou.com
193.203.244.249	A	uk.houxou.com
193.203.244.249	A	sam.uk.houxou.com
193.203.244.254	PTR	tornado.houxou.com
193.203.245.1	A	lightning.houxou.com
193.203.245.134	PTR	nasdaq.us.com
193.203.245.145	A	ffsbs.farrellyfacilities.com
193.203.245.145	A	mailhost.farrellyfacilities.com
193.203.245.145	A	mail.farrellyfacilities.com
193.203.246.41	A	mail.awberymorris.com
193.203.246.74	A	mail.caulder-mooredesign.com
193.203.246.110	PTR	unallocated-host-193.203.246.110.access.houxou.com.246.203.193.in-addr.arpa
193.203.247.1	PTR	unallocated-host-193.203.247.1.access.houxou.com.247.203.193.in-addr.arpa
193.203.247.87	PTR	unallocated-host-193.203.247.87.access.houxou.com.247.203.193.in-addr.arpa
193.203.247.132	PTR	unallocated-host-193.203.247.132.access.houxou.com.247.203.193.in-addr.arpa
193.203.247.173	PTR	unallocated-host-193.203.247.173.access.houxou.com.247.203.193.in-addr.arpa
193.203.247.184	PTR	unallocated-host-193.203.247.184.access.houxou.com.247.203.193.in-addr.arpa
193.203.247.241	PTR	unallocated-host-193.203.247.241.access.houxou.com.247.203.193.in-addr.arpa