Robtex

Up: 81.30.160.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.30.160.0/25
Down right: 81.30.160.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.30.160.1	PTR	meter.vinnitsa.com
81.30.160.1	A	team.vinnitsa.com
81.30.160.2	A+PTR	ra.vinnitsa.com
81.30.160.3	PTR	leo.vntp.net
81.30.160.3	A	gaiter.com.ua
81.30.160.3	A	www.dllab.com
81.30.160.5	PTR	mail.ramtha.vntp.net
81.30.160.5	A	www.vous.vin.ua
81.30.160.5	A	kross-micro.com.ua
81.30.160.6	A+PTR	uni.vinnitsa.com
81.30.160.6	A	oven.vntp.net
81.30.160.6	A	webmail.vinnitsa.com
81.30.160.7	A+PTR	aquarius.vntp.net
81.30.160.8	PTR	mail.vinnitsa.com
81.30.160.8	A	relay.gaiter.com.ua
81.30.160.8	A	relay.dll.com.ua
81.30.160.9	A+PTR	ns.vntp.net
81.30.160.22	A+PTR	as0.vntp.net
81.30.160.24	A	virgo.vinnitsa.com
81.30.160.26	A+PTR	juniper0.vntp.net
81.30.160.28	PTR	cisco1.vntp.net
81.30.160.28	A	as1.vntp.net
81.30.160.29	A	ts1.vntp.net
81.30.160.30	PTR	oven.vntp.net
81.30.160.30	A	ns.vinnitsa.com
81.30.160.30	A	vntp.net
81.30.160.41	A+PTR	point.vinnitsa.com
81.30.160.41	A	ns.point.vinnitsa.com
81.30.160.43	PTR	nika.vin.ua
81.30.160.44	PTR	hosting07.vntp.net
81.30.160.44	A	ns.vinteleport.ua
81.30.160.44	A	mail.vintera.com.ua
81.30.160.50	PTR	osisoft.vin.ua
81.30.160.53	A	vietane.vinnitsa.com
81.30.160.74	PTR	team.vinnitsa.com
81.30.160.76	PTR	vietane.vinnitsa.com
81.30.160.90	A+PTR	gaiter.vntp.net
81.30.160.98	A+PTR	magmaster.vntp.net
81.30.160.98	A	mail.ukrservice.biz
81.30.160.110	PTR	remex.com.ua
81.30.160.142	A	firma-radio.vntp.net
81.30.160.225	A	bgp.vntp.net