Robtex

Up: 91.103.72.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 91.103.73.0/25
Down right: 91.103.73.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.103.73.1	A	pmxnode2.rosintel.com
91.103.73.2	PTR	free.rosintel.net
91.103.73.3	A	time.rosintel.com
91.103.73.4	A	pmxnode0.rosintel.com
91.103.73.5	PTR	www.rosintel.ru
91.103.73.5	A	novomoskovsk.net
91.103.73.5	A	tula-city.ru
91.103.73.6	PTR	free.rosintel.com
91.103.73.7	PTR	ns0.rosintel.com
91.103.73.7	A	ns.novomoskovsk.ru
91.103.73.8	PTR	lbserver.rosintel.com
91.103.73.9	PTR	free.rosintel.net
91.103.73.10	A	drweb.rosintel.com
91.103.73.14	A+PTR	mail.rosintel.com
91.103.73.14	A	mx7.rosintel.com
91.103.73.18	A	billing.rosintel.com
91.103.73.18	A	nbilling.rosintel.com
91.103.73.19	PTR	joker.rosintel.com
91.103.73.23	A+PTR	73-23.rosintel.net
91.103.73.25	A+PTR	rosintel.tv
91.103.73.25	A	www.rosintel.tv
91.103.73.30	PTR	bacula.rosintel.com
91.103.73.30	A	mail.novomoskovsk.ru
91.103.73.30	A	newmail.rosintel.com
91.103.73.35	PTR	vtb-0000-73-035.rosintel.com
91.103.73.44	PTR	vtb-0000-73-044.rosintel.com
91.103.73.58	A+PTR	mx-niap.novomoskovsk.ru
91.103.73.62	PTR	telemix.biz
91.103.73.71	A	mail.tulagrad.su
91.103.73.75	PTR	73-075.rosintel.net
91.103.73.76	PTR	nremstroi.ru
91.103.73.94	PTR	73-094.rosintel.net
91.103.73.95	A+PTR	relay.orgsintez.info
91.103.73.95	A	relay.s-h-p.ru
91.103.73.95	A	relay.ptp-nmsk.ru
91.103.73.96	A+PTR	kos.novomoskovsk.ru
91.103.73.108	A+PTR	mail.agrocheminvest.ru
91.103.73.109	PTR	73-109.rosintel.net
91.103.73.166	PTR	73-166.rosintel.com
91.103.73.218	PTR	mail.nirhtu.ru
91.103.73.218	A	gw.nirhtu.ru
91.103.73.218	A	nirhtu.ru
91.103.73.221	PTR	73-221.rosintel.net
91.103.73.254	PTR	73-254.rosintel.net