Robtex

Up: 88.80.96.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 88.80.96.0/25
Down right: 88.80.96.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
88.80.96.1	A+PTR	border.ultranet.biz
88.80.96.2	A	kus1.ultranet.biz
88.80.96.3	A+PTR	kus2.ultranet.biz
88.80.96.4	A	irc.ultranet.biz
88.80.96.6	A+PTR	ns1.ultranet.biz
88.80.96.6	A	ns.rosafresh.com
88.80.96.6	A	ns1.ultramedia.bg
88.80.96.7	A+PTR	ns2.ultranet.biz
88.80.96.7	A	ns2.strimon-spaclub.com
88.80.96.8	A+PTR	sand3.ultranet.biz
88.80.96.9	A	sand4.ultranet.biz
88.80.96.10	A	gd.ultranet.biz
88.80.96.11	A	hdt.ultranet.biz
88.80.96.12	A+PTR	1speed.ultranet.biz
88.80.96.24	A	ultra2bac.ultranet.biz
88.80.96.25	PTR	rarowedding.com
88.80.96.25	PTR	mail.rarowedding.com
88.80.96.25	A	mail.kstudio-bg.com
88.80.96.26	A	www.bambo.bg
88.80.96.26	A	bambo.bg
88.80.96.27	A	www.energysystemsbg.com
88.80.96.38	A+PTR	kabby.ultranet.biz
88.80.96.45	A	dup.ultranet.biz
88.80.96.45	A	mail.dup.ultranet.biz
88.80.96.67	A	ns1.strimon-spaclub.com
88.80.96.67	A	ns2.strimon-spaclub.com
88.80.96.67	A	www.strimon-spaclub.com
88.80.96.145	A	ultra2netissat.ultranet.biz
88.80.96.146	A	netissat2ultra.ultranet.biz
88.80.96.149	A	border2sand1.ultranet.biz
88.80.96.150	A+PTR	sand1.ultranet.biz
88.80.96.153	A	border2sand2.ultranet.biz
88.80.96.154	A+PTR	sand2.ultranet.biz
88.80.96.157	A	bac2ultra.ultranet.biz
88.80.96.158	A	bac.ultranet.biz