Robtex

Up: 80.240.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 80.240.32.0/21
Down right: 80.240.40.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.240.32.1	PTR	ks15-v.sibttk.net
80.240.32.2	A+PTR	ns.sibttk.net
80.240.32.2	A+PTR	ns1.sibttk.net
80.240.32.2	A	ns-1.sibttk.net
80.240.32.49	PTR	unnamed.ks01-v.sibttk.net
80.240.32.80	PTR	unnamed.ks01-v.sibttk.net
80.240.32.81	PTR	unnamed.ks01-v.sibttk.net
80.240.32.96	PTR	unnamed.ks01-v.sibttk.net
80.240.32.97	PTR	unnamed.ks01-v.sibttk.net
80.240.32.112	PTR	sibttk.net
80.240.32.114	PTR	unnamed.ks01-v.sibttk.net
80.240.32.115	PTR	unnamed.ks01-v.sibttk.net
80.240.32.129	PTR	cpe.ks15-v.sibttk.net
80.240.32.146	PTR	ks15-v.sibttk.net
80.240.32.176	PTR	ks15-v.sibttk.net
80.240.32.177	PTR	ks15-v.sibttk.net
80.240.32.211	PTR	cpe.ks15-v.sibttk.net
80.240.32.224	PTR	cpe.ks15-v.sibttk.net
80.240.32.227	PTR	cpe.ks15-v.sibttk.net
80.240.32.237	A	mail.krevrz.ru
80.240.32.240	PTR	ks15-v.sibttk.net
80.240.32.242	PTR	ks15-v.sibttk.net
80.240.33.0	PTR	vlan381.krsk-1-bng015.sibttk.net
80.240.33.2	A+PTR	ns2.sibttk.net
80.240.33.2	A	ns2.sibttk.ru
80.240.33.9	A	www.peloton.ru
80.240.33.16	PTR	ks15-v.sibttk.net
80.240.33.17	A	mail.radioeconom.ru
80.240.33.17	A	ns.radioeconom.ru
80.240.33.41	A	peloton.ru
80.240.33.41	A	srv-dc.peloton.ru
80.240.33.50	PTR	vlan387.krsk-1-bng015.sibttk.net
80.240.33.51	PTR	vlan387.ks15-v.sibttk.net
80.240.33.61	A	www.airnet24.ru
80.240.33.61	A	airnet24.ru
80.240.33.64	PTR	unnamed.ks15-v.sibttk.net
80.240.33.65	PTR	unnamed.ks15-v.sibttk.net
80.240.33.80	PTR	unnamed.ks15-v.sibttk.net
80.240.33.83	A+PTR	ns3.optibit.ru
80.240.33.83	A	ns3.24-it.ru
80.240.33.115	PTR	vlan355.ks15-v.sibttk.net
80.240.33.128	PTR	unnamed.ks15-v.sibttk.net
80.240.33.144	PTR	unnamed.ks15-v.sibttk.net
80.240.33.147	PTR	unnamed.ks15-v.sibttk.net
80.240.33.153	A	mail.krsksokol.ru
80.240.33.160	PTR	unnamed.ks15-v.sibttk.net
80.240.33.163	PTR	unnamed.ks15-v.sibttk.net
80.240.33.195	PTR	vlan371.ks15-v.sibttk.net
80.240.33.209	PTR	unnamed.ks15-v.sibttk.net
80.240.33.210	PTR	unnamed.krsk-1-bng015.sibttk.net
80.240.33.224	PTR	unnamed.ks15-v.sibttk.net
80.240.33.226	PTR	unnamed.ks15-v.sibttk.net
80.240.33.233	A	ns1.destiny.su
80.240.34.0	PTR	abk-1-bng012.sibttk.net
80.240.34.2	PTR	abk12-p78a.sibttk.net
80.240.34.16	PTR	vlan328.abk12-p78a.sibttk.net
80.240.34.34	PTR	abk12-p78a.sibttk.net
80.240.34.65	PTR	vlan335.abk12-p78a.sibttk.net
80.240.34.77	A	www.ntkplus19.ru
80.240.34.77	A	ntkplus19.ru
80.240.34.80	PTR	sibttk.net
80.240.34.82	PTR	abk12-p78a.sibttk.net
80.240.34.83	PTR	sibttk.net
80.240.34.115	PTR	abk12-p78a.sibttk.net
80.240.34.128	PTR	abk12-p78a.sibttk.net
80.240.34.162	PTR	abk12-p78a.sibttk.net
80.240.34.177	PTR	abk12-p78a.sibttk.net
80.240.34.192	PTR	abk12-p78a.sibttk.net
80.240.34.193	PTR	abk12-p78a.sibttk.net
80.240.34.208	PTR	abk12-p78a.sibttk.net
80.240.34.210	PTR	abk12-p78a.sibttk.net
80.240.34.225	PTR	abk12-p78a.sibttk.net
80.240.34.226	PTR	abk12-p78a.sibttk.net
80.240.35.0	PTR	ipoe.sibttk.net
80.240.35.1	PTR	hp.sibmes.ru
80.240.35.20	A+PTR	rn1.achnpz.ru
80.240.35.40	A+PTR	ns.rn-inform-achinsk.ru
80.240.35.40	A	rn-inform-achinsk.ru
80.240.35.73	A	lesosib.krsk-sbit.ru
80.240.35.105	PTR	ach-1-bng031.sibttk.net
80.240.35.118	PTR	unnamed.ach11-p19a.sibttk.net
80.240.36.0	PTR	krsk-1-bng015.sibttk.net
80.240.36.38	PTR	as.krsk.so-ups.ru
80.240.36.43	A	mh.krsk.irgups.ru
80.240.36.45	A	ns.krsk.irgups.ru
80.240.36.45	A	krsk.irgups.ru
80.240.36.81	PTR	mx.kges.ru
80.240.36.81	A	mx1.kges.ru
80.240.36.81	A	kges.ru
80.240.36.105	A+PTR	post1.vspt.ru
80.240.36.105	A	ns.vspt.ru
80.240.36.129	A	mx2.kges.ru
80.240.36.129	A	ns2.kges.ru
80.240.36.129	A	ns4.kges.ru
80.240.36.146	PTR	mail.medved-sever.ru
80.240.36.193	A+PTR	post.bamts.ru
80.240.36.193	A	ns.bamts.ru
80.240.36.194	A+PTR	ns2.bamts.ru
80.240.36.194	A	bamts.ru
80.240.36.217	PTR	vlan338.ks15-v.sibttk.net
80.240.36.255	PTR	krsk-1-bng015.sibttk.net
80.240.37.0	PTR	ks15-v.sibttk.net
80.240.37.66	A	ctis.evenkya.ru
80.240.37.255	PTR	krsk-1-bng015.sibttk.net
80.240.38.0	PTR	sibttk.net
80.240.38.1	PTR	aqua.divniy.ru
80.240.38.35	PTR	skad-35.divniy.ru
80.240.38.52	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.38.90	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.38.214	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.39.255	PTR	sibttk.net
80.240.40.0	PTR	unnamed.sibttk.net
80.240.40.18	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.32	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.48	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.51	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.66	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.82	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.98	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.99	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.112	PTR	unnamed.sibttk.net
80.240.40.113	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.114	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.115	PTR	unnamed.sibttk.net
80.240.40.129	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.145	PTR	unnamed.sibttk.net
80.240.40.161	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.195	PTR	ks13-v.ks-lomo-100-1-1-2.f03.sibttk.net
80.240.40.209	PTR	unnamed.sibttk.net
80.240.40.210	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.40.225	PTR	unnamed.sibttk.net
80.240.40.241	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.41.86	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.41.97	PTR	pppoe.zlg18-nbr28.sibttk.net
80.240.43.241	PTR	pppoe.zlg-1-bng018.sibttk.net
80.240.44.0	PTR	pppoe.krsk-1-bng036.sibttk.net
80.240.44.130	PTR	unnamed.sibttk.net
80.240.44.176	PTR	cpe-pppoe.zlg-1-bng018.sibttk.net
80.240.44.204	A	benio.ru
80.240.44.226	PTR	cpe-pppoe.zlg18-nbr28.sibttk.net
80.240.44.226	A	ns1.segun24.ru
80.240.44.228	A+PTR	spzgr.ru
80.240.44.228	A	mail.spzgr.ru
80.240.44.228	A	ns.spzgr.ru
80.240.45.255	PTR	sibttk.net
80.240.46.0	PTR	sibttk.net
80.240.46.146	PTR	cpe-pppoe.zlg18-nbr28.sibttk.net
80.240.46.187	PTR	cpe-pppoe.zlg18-nbr28.sibttk.net
80.240.47.0	PTR	sibttk.net
80.240.47.255	PTR	sibttk.net