Robtex

Up: 37.143.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 37.143.16.0/21
Down right: 37.143.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
37.143.16.38	A	mx1.becost.ru
37.143.16.38	A	mx2.becost.ru
37.143.16.162	A+PTR	mail.ut-service.net
37.143.16.174	A	ms.enhol.ru
37.143.17.26	A	mx.vec-ing.ru
37.143.17.30	A	mail.siwa.ru
37.143.17.126	A	ns4.lccru.com
37.143.17.146	A+PTR	mail.1gl-spb.ru
37.143.17.158	A	hldk.tk
37.143.17.238	A	mail.logus-sdf.ru
37.143.18.18	A	ns.loadstar.ru
37.143.18.30	A	mail.ladya78.ru
37.143.18.162	A+PTR	mail.teksneva.ru
37.143.18.246	A+PTR	mail.togfashion.ru
37.143.18.250	A	fortis.covexnet.ru
37.143.19.78	A	i-wish.ru
37.143.19.106	A	mail.tg-soft.ru
37.143.20.22	A+PTR	mail.detalika.ru
37.143.20.22	A	mail.avto-plus.spb.ru
37.143.20.142	PTR	otrs.ollis.ru
37.143.21.106	A+PTR	ns2.severen.net
37.143.21.106	A	ns5.sorola.ru
37.143.21.106	A	uno.severen.com
37.143.23.86	A+PTR	relay.media-price.ru
37.143.23.106	PTR	hosting.soleansspb.ru
37.143.23.106	A	mail.lccru.com
37.143.23.106	A	ns2.hosting.soleansspb.ru
37.143.24.6	A	stone.grouptechno.ru
37.143.24.6	A	ns.grouptechno.ru
37.143.24.6	A	xn----8sbyi1akbsa.xn--p1ai
37.143.24.51	A	gw2.asuprofi.ru
37.143.24.54	A+PTR	mail2.asuprofi.ru
37.143.24.54	A	asuprofi.ru
37.143.24.54	A	ns2.asuprofi.ru
37.143.24.108	A+PTR	mail.1852hotel.ru
37.143.24.110	A	sdsolutions.ru
37.143.24.134	A	www.5-000-000.ru
37.143.24.181	A	mx.diburo.ru
37.143.24.181	A	diburo.ru
37.143.24.181	A	z41.diburo.ru
37.143.24.182	A	diburo.ru
37.143.24.194	PTR	mail.germesgroup.com
37.143.25.3	A	mx2.rustest.spb.ru
37.143.25.39	A+PTR	mail.jvacs.com
37.143.25.39	A	jvacs.com
37.143.25.39	A	stainternational.biz
37.143.25.40	PTR	mx.stainternational.biz
37.143.25.40	A+PTR	mx.jvacs.com
37.143.25.130	A+PTR	mail.hakel.ru
37.143.25.146	PTR	mail.ac-ro.ru
37.143.25.149	PTR	mail2.ac-ro.ru
37.143.25.214	A+PTR	gws.sauberbank.com
37.143.26.84	PTR	nilc.spb.ru
37.143.26.132	A+PTR	mtrgw.metrika.info
37.143.26.133	A+PTR	gw2.metrika.ru
37.143.26.133	A	mail.metrika.ru
37.143.26.133	A	mail.metrika-trade.ru
37.143.26.242	PTR	mail.intexo.ru
37.143.28.34	A	sm2.severen.net
37.143.28.102	A	mail.mashopttorg.com
37.143.29.14	A	parnas.europek.ru
37.143.29.14	A	mail.europek.ru
37.143.29.42	PTR	relay2.premiumrenta.ru
37.143.29.42	A	www.1000i1sumka.ru
37.143.29.42	A	www.premiumrenta.ru
37.143.29.70	A	flamingoproduct.ru
37.143.29.70	A	mail.flamingoproduct.ru
37.143.29.70	A	www.luchspb.ru
37.143.30.38	A+PTR	mx2.helix.ru
37.143.30.38	A	mx2.medindex.ru
37.143.30.49	PTR	wrk-049.if.gimeney.net
37.143.30.50	PTR	wrk-050.if.gimeney.net
37.143.30.50	A	rusolver.biz
37.143.30.50	A	rusolver.ru
37.143.30.51	PTR	mx.stc-spb.ru
37.143.30.66	A	ns2.itsm.ru
37.143.30.68	A+PTR	mail.andproject.ru
37.143.30.68	A	bars.andproject.ru
37.143.30.68	A	mail.tops.ru
37.143.30.124	A	school-shostakovich.com
37.143.30.194	PTR	gw.elan-motors.ru
37.143.30.195	A+PTR	mx.elan-motors.ru
37.143.30.204	A	piterrahome.ru
37.143.30.214	A	fido.spb.ru
37.143.30.214	A	ts.fido.spb.ru
37.143.30.214	A	ns1.fido.spb.ru
37.143.30.242	A+PTR	mail.ecosafety.ru
37.143.30.243	A	ecosafety.ru
37.143.31.90	A	kup.no-ip.org