Robtex

Up: 80.73.4.128/25
Can't show all results, try to descend to a more specific CIDR
Down left: 80.73.4.192/27
Down right: 80.73.4.224/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.73.4.195	PTR	postoffice.balu.net.ua
80.73.4.195	A	mail.triolan.pl.ua
80.73.4.199	PTR	199.4.73.80.triolan.net
80.73.4.202	PTR	202.4.73.80.triolan.net
80.73.4.219	PTR	219.4.73.80.triolan.net
80.73.4.219	A	mail.flametur.kiev.ua
80.73.4.230	PTR	230.4.73.80.triolan.net
80.73.4.238	PTR	microsof-855f04.sloboda.net
80.73.4.245	PTR	245.4.73.80.triolan.net
80.73.4.254	PTR	254.4.73.80.triolan.net
80.73.4.254	A	sparepart.com.ua
80.73.4.254	A	wintex.org
80.73.4.255	PTR	255.4.73.80.triolan.net