Robtex

Up: 80.73.8.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.73.9.0/25
Down right: 80.73.9.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.73.9.0	PTR	0.9.73.80.triolan.net
80.73.9.4	PTR	4.9.73.80.triolan.net
80.73.9.4	A	mail.triolan.net.ua
80.73.9.6	PTR	6.9.73.80.triolan.net
80.73.9.7	A+PTR	drweb.sloboda.net
80.73.9.9	PTR	9.9.73.80.triolan.net
80.73.9.10	PTR	10.9.73.80.triolan.net
80.73.9.10	A	free.triolan.com.ua
80.73.9.10	A	noaccess.triolan.com.ua
80.73.9.17	PTR	17.9.73.80.triolan.net
80.73.9.17	A	ns2.triolan.net.ua
80.73.9.20	A+PTR	zabbix.triolan.com.ua
80.73.9.20	A	ping.triolan.com.ua
80.73.9.21	A	opttrio.com
80.73.9.26	PTR	26.9.73.80.triolan.net
80.73.9.35	A+PTR	mail.triolan.com.ua
80.73.9.36	PTR	36.9.73.80.triolan.net
80.73.9.38	PTR	38.9.73.80.triolan.net
80.73.9.39	PTR	39.9.73.80.triolan.net
80.73.9.40	PTR	40.9.73.80.triolan.net
80.73.9.41	PTR	41.9.73.80.triolan.net
80.73.9.44	PTR	44.9.73.80.triolan.net
80.73.9.45	PTR	45.9.73.80.triolan.net
80.73.9.46	PTR	46.9.73.80.triolan.net
80.73.9.47	PTR	47.9.73.80.triolan.net
80.73.9.48	PTR	48.9.73.80.triolan.net
80.73.9.50	PTR	50.9.73.80.triolan.net
80.73.9.50	A	vchasno.in.ua
80.73.9.51	PTR	51.9.73.80.triolan.net
80.73.9.61	A+PTR	triolan.net
80.73.9.61	A	www.triolan.net
80.73.9.61	A	forum.triolan.net
80.73.9.71	PTR	71.9.73.80.triolan.net
80.73.9.72	PTR	72.9.73.80.triolan.net
80.73.9.75	PTR	75.9.73.80.triolan.net
80.73.9.75	A	www.triolan.mobi
80.73.9.75	A	triolan.mobi
80.73.9.89	PTR	89.9.73.80.triolan.net
80.73.9.101	PTR	bitlab.com.ua
80.73.9.120	PTR	nvptmk.com.ua
80.73.9.129	PTR	129.9.73.80.triolan.net
80.73.9.139	A	www.sigillite.net
80.73.9.139	A	sigillite.net
80.73.9.162	PTR	162.9.73.80.triolan.net
80.73.9.164	PTR	164.9.73.80.triolan.net
80.73.9.200	PTR	200.9.73.80.triolan.net
80.73.9.200	A	timepro.tv
80.73.9.200	A	ns1.timepro.tv
80.73.9.204	PTR	204.9.73.80.triolan.net