Robtex

Up: 91.90.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 91.90.36.0/23
Down right: 91.90.38.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.90.36.2	PTR	ns.mkc-omsk.ru
91.90.36.2	A	ns.chertkov.com
91.90.36.4	A+PTR	www.mkc-omsk.ru
91.90.36.4	A	www.lanomsk.ru
91.90.36.4	A	mkc-omsk.ru
91.90.36.6	PTR	web.mkc-omsk.ru
91.90.36.8	A+PTR	mx.mkc-omsk.ru
91.90.36.69	PTR	node-91-90-36-69.mkc-omsk.ru
91.90.36.122	A+PTR	122-36-90-91.omsk.mts.mkc-omsk.ru
91.90.36.195	A	node-91-90-36-195.omsk.multinex.ru
91.90.36.210	A+PTR	zodiac1.omsktele.com
91.90.36.224	A	nat-224-zsttk.omsktele.com
91.90.36.229	PTR	229-36-90-91.omsk.mts.mkc-omsk.ru
91.90.36.229	A	npointerro.ru
91.90.36.230	A	nat-230-zsttk.omsktele.com
91.90.36.231	A	nat-231-zsttk.omsktele.com
91.90.36.232	A	nat-232-zsttk.omsktele.com
91.90.36.233	A	nat-233-zsttk.omsktele.com
91.90.36.236	A	236-36-90-91.omsk.mts.mkc-omsk.ru
91.90.36.250	PTR	node-91-90-36-250.mkc-omsk.ru
91.90.37.158	PTR	pppoe-91-90-37-158.bras-55-2-1.mkc-omsk.ru
91.90.37.182	PTR	pppoe-91-90-37-182.bras-55-2-1.mkc-omsk.ru
91.90.37.224	PTR	224-37-90-91.omsk.mts.ru
91.90.37.234	A+PTR	mail.sgsd.ru
91.90.38.0	PTR	node-91-90-38-0.static.mkc-omsk.ru
91.90.38.26	PTR	node-91-90-38-26.static.mkc-omsk.ru
91.90.38.26	A	mail.mir-omsk.ru
91.90.38.30	PTR	ksomsk.com
91.90.38.48	PTR	node-91-90-38-48.static.mkc-omsk.ru
91.90.38.48	A	filins.ru
91.90.38.68	A+PTR	68-38-90-91.omsk.mts.mkc-omsk.ru
91.90.38.72	A+PTR	72-38-90-91.omsk.mts.mkc-omsk.ru
91.90.38.72	A	www.al-v.net
91.90.38.73	A+PTR	73-38-90-91.omsk.mts.mkc-omsk.ru
91.90.38.73	A	n0d.ru
91.90.38.76	PTR	node-91-90-38-76.static.mkc-omsk.ru
91.90.38.81	PTR	81-38-90-91.omsk.mts.mkc-omsk.ru
91.90.38.81	A	vsevomske.ru
91.90.38.81	A	autorevista.ru
91.90.38.106	PTR	node-91-90-38-106.static.mkc-omsk.ru
91.90.38.106	A	ns.ecotherm.ru
91.90.38.134	PTR	node-91-90-38-134.static.mkc-omsk.ru
91.90.38.134	A	mail3.melkom-omsk.ru
91.90.38.134	A	mail.melkom-omsk.ru
91.90.38.138	PTR	138-38-90-91.omsk.mts.mkc-omsk.ru
91.90.38.162	A+PTR	mx.akcia.org
91.90.38.162	A	general.akcia.org
91.90.38.170	PTR	node-91-90-38-170.static.mkc-omsk.ru
91.90.38.170	A	mail.omskoblgaz.ru
91.90.38.170	A	office.omskoblgaz.ru
91.90.39.0	PTR	node-91-90-39-0.static.mkc-omsk.ru
91.90.39.6	A+PTR	mx.sibinc.ru
91.90.39.6	A	ns.sibinc.ru
91.90.39.6	A	ns1.sibinc.ru
91.90.39.30	PTR	node-91-90-39-30.static.mkc-omsk.ru
91.90.39.50	A+PTR	mail.hlebodar.ru
91.90.39.50	A	hlebodar.ru
91.90.39.130	PTR	node-91-90-39-130.static.mkc-omsk.ru
91.90.39.130	A	mx.oemz.ru
91.90.39.138	PTR	node-91-90-39-138.static.mkc-omsk.ru
91.90.39.138	A	sbrf.omsknet.ru
91.90.39.142	A+PTR	mail.radiostroy.org
91.90.39.142	A	ns1.radiostroy.org
91.90.39.142	A	radiostroy.org
91.90.39.202	A	mail2.ava-company.com
91.90.39.202	A	www.ava-company.com
91.90.39.203	A+PTR	mail.ava-company.com
91.90.39.226	PTR	mdoors.promex.ru
91.90.39.226	A	inomsk.org
91.90.39.250	PTR	node-91-90-39-250.static.mkc-omsk.ru
91.90.39.250	A	petro-canada.company
91.90.39.250	A	avtodiscontomsk.ru
91.90.39.255	PTR	node-91-90-39-255.static.mkc-omsk.ru