Robtex

Up: 77.73.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 77.73.24.0/22
Down right: 77.73.28.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.73.24.2	A+PTR	ns.gptel.ru
77.73.24.2	A	ns.asdal.ru
77.73.24.2	A	ns.grand-prix.ru
77.73.24.3	PTR	mail.gptel.ru
77.73.24.4	A	serg.gptel.ru
77.73.24.22	A	isp.gptel.ru
77.73.24.22	A	spectrhost.ru
77.73.24.22	A	www.sl-systems.ru
77.73.24.24	PTR	hosting.gptel.ru
77.73.24.24	A	next-cctv.ru
77.73.24.24	A	infooborona.ru
77.73.24.27	PTR	sql.gptel.ru
77.73.24.34	PTR	host34.gptel.ru
77.73.24.34	A	mx.gptel.ru
77.73.24.35	A+PTR	mx.gptel.ru
77.73.24.50	A	serg.gptel.ru
77.73.24.56	A	ns0.spectrhost.ru
77.73.24.64	PTR	host64.gptel.ru
77.73.24.72	PTR	host72.gptel.ru
77.73.24.83	PTR	host83.gptel.ru
77.73.24.106	PTR	host106.gptel.ru
77.73.24.106	A	mail.todelgroup.ru
77.73.24.109	A	mail.agat-a.ru
77.73.24.123	A+PTR	ntc-proxy.agat-ntc.ru
77.73.24.123	A	agat-ntc.ru
77.73.24.123	A	ns.agat-ntc.ru
77.73.24.131	PTR	mx1.deltapay.ru
77.73.24.131	A	sps.astarots.ru
77.73.24.160	PTR	host160.gptel.ru
77.73.24.163	PTR	mail.redd.ru
77.73.24.180	A	www.wnc.ru
77.73.24.192	PTR	host192.gptel.ru
77.73.24.194	A+PTR	mx.grand-prix.ru
77.73.24.205	A	infooborona.ru
77.73.24.205	A	www.grand-prix.su
77.73.24.205	A	grand-prix.su
77.73.24.217	A+PTR	mail.3-trans.ru
77.73.24.222	A	live.grand-prix.ru
77.73.24.226	A+PTR	ns3.gptel.ru
77.73.24.229	A	gate3.gptel.ru
77.73.25.1	PTR	gw-cat.gptel.ru
77.73.25.2	A+PTR	ns2.gptel.ru
77.73.25.28	A	virag-msk.ru
77.73.25.31	A	virag-msk.ru
77.73.25.40	A	mail.integris.ru
77.73.25.42	A	mail2.akmetron.ru
77.73.25.46	PTR	mail.utf.su
77.73.25.50	PTR	tdnika.net
77.73.25.85	PTR	mail.h2a.ru
77.73.25.86	A+PTR	mail01.fei-s.ru
77.73.25.118	PTR	mx.lissyara.su
77.73.25.122	A	mx1.deltapay.ru
77.73.25.123	A	mx2.deltapay.ru
77.73.25.124	A	mx1.delta-telecom.ru
77.73.25.135	A	marine.gov.ru
77.73.25.153	A	mail2.servburo.ru
77.73.25.189	A	ns2.gt-auto.su
77.73.25.189	A	ns2.glonassnet.com
77.73.25.189	A	ns2.glonassnet.ru
77.73.25.194	PTR	vpn.victori.ru
77.73.25.194	A	mail.parkomat.ru
77.73.25.195	PTR	victori.ru
77.73.25.202	A+PTR	mail.concern-agat.ru
77.73.25.205	A	epia.grand-prix.ru
77.73.26.74	PTR	mail.c-o-t.ru
77.73.26.113	A	ns2.wdg.ru
77.73.26.114	A	www.logobook.ru
77.73.26.115	PTR	gw.consul.ru
77.73.26.115	A	net.consul.ru
77.73.26.115	A	mail.consul.ru
77.73.26.124	A	fkbook.ru
77.73.26.163	A+PTR	mail.deltapay.ru
77.73.26.163	A	mail.delta-telecom.ru
77.73.26.166	A	rk-trading.ru
77.73.26.166	A	ns2.mt-24.ru
77.73.26.202	A	mail20.se-trans.ru
77.73.26.210	PTR	srv-mail.logikatrans.ru
77.73.26.218	A	ns2.elcom-ec.com
77.73.26.220	PTR	mail.elcom-ec.com
77.73.26.220	A+PTR	mail.deltapay.net
77.73.26.220	A	elcom-web.elcom-ec.com
77.73.27.11	PTR	mail.eaf.ru
77.73.27.34	A+PTR	mail2.anex.ru
77.73.27.34	A	anex.ru
77.73.27.34	A	www.anex.ru
77.73.27.50	A	post.admin-corp.ru
77.73.27.98	PTR	mx.grand-prix.ru
77.73.27.115	A	xn--h1ahfr.xn--p1ai
77.73.27.115	A	mail-server.xn--h1ahfr.xn--p1ai
77.73.27.125	A	cosmoserver.ru
77.73.27.150	PTR	elicom-msk.dnsadmin.ru
77.73.27.171	PTR	smgr.gptel.ru
77.73.27.194	A	mixxxail.ru
77.73.27.230	PTR	keys.itprotect.ru
77.73.27.253	A	uxu.ru
77.73.27.253	A	lin2.pentasport.ru
77.73.28.68	A	mxn.groupatlas.com
77.73.28.98	A	mail.stankolit-parfum.ru
77.73.28.106	A	mail.cremonta.ru
77.73.28.138	PTR	srv8.host-food.ru
77.73.28.138	A	malabar-club.com
77.73.28.139	A	xn--80aabgp7aws2e.xn--p1ai
77.73.28.162	A	it-ps.ru
77.73.28.162	A	www.it-ps.ru
77.73.28.166	A	dikaev.com
77.73.28.239	A	mail.irbis-group.ru
77.73.28.240	PTR	mail1.irbis-group.ru
77.73.28.245	A	irbis-group.ru
77.73.28.245	A	ns.irbis-group.ru
77.73.29.8	A	mail20.se-trans.ru
77.73.29.19	A	xn--80aabgp7aws2eya.xn--p1ai
77.73.29.20	PTR	srv10.host-food.ru
77.73.29.29	A+PTR	msk.aspokem.ru
77.73.29.51	A	mx1.f-2-b.ru
77.73.31.3	A	enidtp.ru
77.73.31.4	A	dsarts.ru
77.73.31.4	A	web-setting.ru
77.73.31.4	A	mx.lopatin.org
77.73.31.119	A	www.mgupi.ru
77.73.31.164	A	ns1.mgupi.ru
77.73.31.176	A	forum.miccedu.ru
77.73.31.199	A	class.miccedu.ru
77.73.31.202	A	do.mgupi.ru
77.73.31.202	A	ns.do.mgupi.ru
77.73.31.247	A+PTR	mail.mgupi.ru
77.73.31.247	A	smtp5.miccedu.ru
77.73.31.247	A	mail1.mgupi.ru
77.73.31.248	A	gzgu.ru