Robtex

Up: 83.149.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 83.149.48.0/23
Down right: 83.149.50.0/23

IP	Type	Hostname
83.149.48.85	A	k0349.vipcam.org
83.149.49.178	A	speedtest-sib.megafon.ru
83.149.50.65	A+PTR	ns1.megafonsib.ru
83.149.50.80	PTR	www.prostotarif.ru
83.149.50.87	PTR	www.gorod.megafonsib.ru
83.149.50.89	A+PTR	info.megafonsib.ru
83.149.50.99	PTR	ra.megafonsib.ru
83.149.50.100	PTR	megafon-quest.ru
83.149.50.102	A+PTR	tp.megafonsib.ru
83.149.50.112	A	sib-mx01.megafon.ru
83.149.50.202	A+PTR	sibsg.megafon.ru
83.149.51.48	A+PTR	pat.megafonsib.ru
83.149.51.52	A	sib-ext-adns.megafon.ru
83.149.51.55	A+PTR	mail.megafonsib.ru
83.149.51.110	A	mail.megafon.ru
83.149.51.195	A+PTR	www.megafonsib.ru
83.149.51.195	A	megafonsib.ru
83.149.51.210	A+PTR	mx.megafonsib.ru
83.149.51.218	A+PTR	mfns1.megafonsib.ru
83.149.51.219	A+PTR	ns2.megafonsib.ru
83.149.51.219	A	ns.megafonsib.ru