Robtex

Up: 84.21.192.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 84.21.200.0/22
Down right: 84.21.204.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
84.21.200.10	A+PTR	titan.voicecom.bg
84.21.200.10	A	mail.voicecom.bg
84.21.200.11	A+PTR	tethys.voicecom.bg
84.21.200.72	A+PTR	rhea.voicecom.bg
84.21.200.72	A	voicecom-bg.com
84.21.200.72	A	smsgames.bg
84.21.200.126	A	wpw-bg.com
84.21.200.126	A	elnet-bg.com
84.21.200.126	A	fintex-trade.com
84.21.202.2	A	mail.mbi-research.com
84.21.202.2	A	mail.mg-research.com
84.21.202.2	A	mail1.ppmanagement.eu
84.21.202.12	A+PTR	mail.fmfib.bg
84.21.202.23	PTR	clients-pools.sf.cooolbox.bg
84.21.202.23	A	mgframe.com
84.21.202.26	PTR	clients-pools.sf.cooolbox.bg
84.21.202.26	A	twistedstars.net
84.21.202.34	PTR	clients-pools.sf.cooolbox.bg
84.21.202.34	A	codebrew.io
84.21.202.35	PTR	mail.bgsuperhosting.com
84.21.202.35	A	bgsuperhosting.com
84.21.202.35	A	bagerist.com
84.21.202.45	PTR	clients-pools.sf.cooolbox.bg
84.21.202.45	A	17q.org
84.21.202.45	A	w23.statscollector.cf
84.21.202.51	PTR	clients-pools.sf.cooolbox.bg
84.21.202.51	A	omegasoft.bg
84.21.202.51	A	omeks.net
84.21.202.64	A	globods1-64.blv-research.com
84.21.202.69	PTR	clients-pools.sf.cooolbox.bg
84.21.202.98	PTR	clients-pools.sf.cooolbox.bg
84.21.202.98	A	yrlegal.com
84.21.202.106	PTR	clients-pools.sf.cooolbox.bg
84.21.202.106	A	ns2.bastun.net
84.21.202.194	PTR	clients-pools.sf.cooolbox.bg
84.21.202.200	PTR	mail.perfectbg.com
84.21.202.200	A	consultbggroup.com
84.21.202.200	A	ns1.perfectbg.com
84.21.202.201	PTR	clients-pools.sf.cooolbox.bg
84.21.202.202	PTR	clients-pools.sf.cooolbox.bg
84.21.202.209	PTR	clients-pools.sf.cooolbox.bg
84.21.202.209	A	kristinadraganova.com
84.21.202.209	A	bgholiday.com
84.21.202.211	PTR	clients-pools.sf.cooolbox.bg
84.21.202.211	A	www.econsulate.eu
84.21.202.211	A	consulatebg.eu
84.21.202.224	A	www.biodarove.com
84.21.202.224	A	biodarove.com
84.21.203.18	A	gombatest.com
84.21.203.68	A	mail.cherga.bg
84.21.203.68	A	mail01.cherga.bg
84.21.203.69	A	www.computers.bg
84.21.203.70	A	cherga.bg
84.21.203.82	A	sme.mwlogistica.com
84.21.203.86	A	mwlogistica.com
84.21.203.86	A	mail.mwlogistica.com
84.21.203.106	A	ns3.servbg.com
84.21.203.106	A	velev.servbg.com
84.21.203.106	A	*.servbg.com
84.21.203.110	PTR	mx.regulus.bg
84.21.203.212	A	mx.alcor.bg
84.21.205.10	A	kip.bg
84.21.205.10	A	mail.kip.bg
84.21.205.101	PTR	clients-pools.sf.cooolbox.bg
84.21.205.101	A	bestgsmplan.com
84.21.206.76	A	neurontechbg.com
84.21.207.2	PTR	rusev.org
84.21.207.50	A	mailz.ppmanagement.eu
84.21.207.52	A	mail1.ppmanagement.eu
84.21.207.138	PTR	138-futurelan1.online.bg