Robtex

Up: 80.73.10.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.73.11.0/25
Down right: 80.73.11.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.73.11.0	PTR	0.11.73.80.triolan.net
80.73.11.70	PTR	70.11.73.80.triolan.net
80.73.11.139	PTR	switchbilling.sloboda.net
80.73.11.139	A	triolan.com
80.73.11.139	A	www.triolan.com
80.73.11.150	PTR	tv.bars.ua
80.73.11.161	PTR	od.triolan.com
80.73.11.161	A	vip.sloboda.net
80.73.11.161	A	triolan.poltava.ua
80.73.11.163	A+PTR	tf2.sloboda.net
80.73.11.163	A	www.wow.sloboda.net
80.73.11.163	A	www.tf2.sloboda.net
80.73.11.164	PTR	164.11.73.80.triolan.net
80.73.11.178	PTR	178.11.73.80.triolan.net
80.73.11.178	A	mx1.triolan.kiev.ua
80.73.11.180	PTR	180.11.73.80.triolan.net
80.73.11.180	A	wow.triolan.com.ua
80.73.11.180	A	ogame.triolan.com.ua
80.73.11.182	A+PTR	programmers.sloboda.net
80.73.11.182	A	www.triolan.name
80.73.11.182	A	triolan.name
80.73.11.183	PTR	183.11.73.80.triolan.net
80.73.11.184	A	commfort.sloboda.net
80.73.11.249	PTR	249.11.73.80.triolan.net
80.73.11.255	PTR	255.11.73.80.triolan.net