Robtex

Up: 37.46.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 37.46.56.0/22
Down right: 37.46.60.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
37.46.60.3	A+PTR	ns2.kodeks.net
37.46.60.3	A	ns1.kodeks.ru
37.46.60.4	PTR	ace.kodeks.net
37.46.60.4	PTR	mail.kodeks.ru
37.46.60.4	A	mail.kodeks.net
37.46.60.7	PTR	ns3.kodeks.ru
37.46.60.23	A+PTR	gw230.kodeks.net
37.46.60.23	A	www.kodeks-msk.ru
37.46.60.23	A	3ton.kodeks.net
37.46.60.31	A	xn--80aejgdda1aikwb4at.com
37.46.60.31	A	www.altcti.ru
37.46.60.32	A	tehexpert.info
37.46.60.32	A	t-exp.ru
37.46.60.140	A	kucher.me
37.46.61.10	A	mail.akmeservices.ru
37.46.61.102	A+PTR	mx.aquelia.ru
37.46.61.146	A+PTR	alsrussia.com
37.46.61.146	PTR	dal-eng.com
37.46.61.146	PTR	mc-eng.com
37.46.61.148	PTR	alsrussia.com
37.46.61.148	PTR	dal-eng.com
37.46.61.148	PTR	mc-eng.com
37.46.61.178	A	mail.vikona.spb.ru
37.46.61.179	PTR	mail.vikona.spb.ru
37.46.62.2	PTR	n2.h1mf.net
37.46.62.2	A	gw.h1mf.net
37.46.62.3	PTR	gw.h1mf.net
37.46.62.5	A	mx5.h1mf.net
37.46.62.5	A	mail.kazbani.ru
37.46.62.5	A	mail.h1mf.net
37.46.62.8	PTR	n8.h1mf.net
37.46.62.8	A	alpist.org
37.46.62.9	PTR	n9.h1mf.net
37.46.62.10	PTR	gw.h1mf.net
37.46.62.11	PTR	n11.h1mf.net
37.46.62.17	PTR	gw.h1mf.net
37.46.62.18	PTR	n18.h1mf.net
37.46.62.24	PTR	gw.h1mf.net
37.46.62.132	A+PTR	mail.electromera.ru
37.46.62.132	A	bc-electromera.spb.ru
37.46.62.132	A	taps.spb.ru
37.46.62.134	A	mail.taps.spb.ru
37.46.62.136	A	ns2.mirprod.ru
37.46.62.137	A	www.electromera.ru
37.46.62.140	A	smtp.electromera.spb.ru
37.46.62.142	A	electromera.spb.ru
37.46.62.194	A+PTR	h2.mirprod.ru
37.46.62.194	A	ns2.cenistop.ru
37.46.63.4	A	mx.planar-lighting.ru
37.46.63.7	PTR	mail.grand-pcb.com
37.46.63.7	A	ns2.grand-pcb.com
37.46.63.10	A	batosha.ru
37.46.63.13	A	mx.akrilfactory.ru
37.46.63.34	PTR	mail.happylook.ru
37.46.63.34	A	ns1.optic-house.com
37.46.63.34	A	ns1.happylook.ru
37.46.63.66	PTR	mail.sigma.spb.ru
37.46.63.66	A	sigma.spb.ru
37.46.63.98	PTR	mail.2-berega.ru
37.46.63.98	A	mysushi.spb.ru
37.46.63.100	A	mail.huzer.ru
37.46.63.122	A+PTR	mon.fc-zenit.ru
37.46.63.122	A	ns2.fc-zenit.ru
37.46.63.126	A	mail.fc-zenit.ru
37.46.63.179	A+PTR	gate.bookvoed.ru
37.46.63.179	A	mail2.bookvoed.ru
37.46.63.226	A+PTR	mail.petromaster.ru
37.46.63.226	A	mx.petromaster.ru