Robtex

Up: 81.16.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.16.112.0/21
Down right: 81.16.120.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.16.112.1	A+PTR	s1.wimax.ru
81.16.112.2	PTR	www.wimax.ru
81.16.112.3	PTR	mail1.wimax.ru
81.16.112.3	A	mail.svf.ru
81.16.112.4	A	watchdog.wimax.ru
81.16.112.4	A	noc.wimax.ru
81.16.112.25	A	mx.starttelecom.ru
81.16.112.29	A	pix-1.m9.starttelecom.ru
81.16.112.34	A	rad.starttelecom.ru
81.16.113.99	PTR	tt.starttelecom.ru
81.16.113.120	PTR	www.starttelecom.ru
81.16.113.120	A	spb.starttelecom.ru
81.16.113.177	A	sonnar.starttelecom.ru
81.16.113.190	A	ns.oryolmetals.com
81.16.114.3	A	voice.wimax.ru
81.16.114.33	A+PTR	mvts-start01.starttelecom.ru
81.16.114.41	A+PTR	ambs2.starttelecom.ru
81.16.114.62	A	mvts-suk01.starttelecom.ru
81.16.114.99	A	mvts-exa.starttelecom.ru
81.16.114.99	A	mvts-exa01.starttelecom.ru
81.16.115.3	PTR	cs-2.m9.starttelecom.ru
81.16.115.5	A	sw-1.bhv.wimax.ru
81.16.115.33	PTR	host1.soes.ru
81.16.115.35	PTR	ns.soes.ru
81.16.115.35	PTR	ns.svs1.ru
81.16.115.36	A	mx.svs1.ru
81.16.115.44	A	terafica.ir
81.16.115.176	PTR	fakon-nat176.starttelecom.ru
81.16.116.1	PTR	ns2.wimax.ru
81.16.116.58	PTR	mail.shgsm.ru
81.16.117.181	A	mark-10g.starttelecom.ru
81.16.117.182	A	gw-mark-10g.starttelecom.ru
81.16.117.213	A	www.dale.ir
81.16.117.213	A	www.faria.ir
81.16.118.73	A	myvm.ir
81.16.118.73	A	ns.kad313.ir
81.16.118.73	A	ns.myvm.ir
81.16.118.131	PTR	mail.smolen.ru
81.16.119.77	A+PTR	gd-nas02.starttelecom.ru
81.16.120.8	A	www.sohabfa.com
81.16.120.8	A	ns2.sohabfa.com
81.16.120.8	A	sohabfa.com
81.16.120.59	A	mail.gam3d.ir
81.16.120.59	A	gam3d.ir
81.16.120.59	A	ns1.gam3d.ir
81.16.120.166	PTR	diam.keytown.com
81.16.120.219	A	payeshgari.com
81.16.120.226	A	iot.epikgroup.ir
81.16.121.3	PTR	mail.keytown.com
81.16.121.3	PTR	mailer.keytown.com
81.16.121.18	A	mail.innopharm.ru
81.16.121.19	A	mail1.innopharm.ru
81.16.121.20	A	ctd.innopharm.ru
81.16.122.101	A	st-gw.bm18.global-networks.ru
81.16.122.102	A	gn-st-gw.bm18.global-networks.ru
81.16.124.94	A	www.golestantours.com
81.16.124.122	A+PTR	mail.nipo.gov.ir
81.16.124.137	A	www.novinghabz.ir
81.16.124.137	A	novinghabz.ir
81.16.124.137	A	mail.novinghabz.ir
81.16.124.160	A	www.atiehmes.com
81.16.125.95	A	ns1.iranatlaskish.com
81.16.125.234	A	rokhvanak.ddns.net
81.16.125.234	A	rokhvoip.ddns.net
81.16.126.8	A	mail.avakatan.ir
81.16.126.8	A	ns2.avakatan.ir
81.16.126.17	PTR	host17.svc.ru
81.16.126.51	PTR	host51.svc.ru
81.16.126.82	PTR	host82.svc.ru
81.16.126.144	PTR	host144.svc.ru
81.16.126.163	PTR	host163.svc.ru
81.16.126.163	A	bayal.ir
81.16.126.163	A	amox.ir
81.16.127.232	A	www.fardiran.com
81.16.127.253	A	www.ipmadar.ir
81.16.127.253	A	www.iranedalat.ir
81.16.127.253	A	www.nexiio.com