Robtex

Up: 213.16.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 213.16.48.0/21
Down right: 213.16.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.16.49.27	A	mails.gmsvar.com
213.16.49.106	A+PTR	213-16-49-106.ip.btc-net.bg
213.16.49.106	A	petrich.imeon.bg
213.16.49.155	A+PTR	213-16-49-155.ip.btc-net.bg
213.16.50.178	PTR	mx2.bonmar.bg
213.16.50.178	A	seability.bg
213.16.50.178	A	ns.bonmar.bg
213.16.50.242	PTR	strimon-spaclub.com
213.16.52.64	PTR	213-16-52-64.ip.btc-net.bg
213.16.52.66	PTR	66_52.btc-net.bg
213.16.52.90	A	mail.cosmeticplus.bg
213.16.52.90	A	mail.beautyzone.bg
213.16.52.91	A	ns2.nicotianabt.com
213.16.52.97	A+PTR	213-16-52-97.ip.btc-net.bg
213.16.52.129	PTR	pazar.securities.bg
213.16.52.144	PTR	botyo.securities.bg
213.16.52.212	A	ns.seability.bg
213.16.52.213	A	mail.bonmar.net
213.16.52.216	A	mail.bsa-bulgaria.com
213.16.52.216	A	bsa-bulgaria.com
213.16.52.233	A	213-16-52-233.ip.btc-net.bg
213.16.53.1	PTR	1_53.btc-net.bg
213.16.53.18	PTR	213-16-53-18.ip.btc-net.bg
213.16.53.66	A+PTR	213-16-53-66.ip.btc-net.bg
213.16.53.210	PTR	213-16-53-210.ip.btc-net.bg
213.16.53.210	A	ns2.zensoft.biz
213.16.53.210	A	ns2.zensoft.info
213.16.54.1	PTR	www.lianna-bg.com
213.16.54.22	A	www.prizma-bg.com
213.16.54.32	A	mail.perspective.bg
213.16.54.32	A	www.perspective.bg
213.16.54.32	A	perspective.bg
213.16.54.44	A	mail.fag.bg
213.16.54.48	A	www.sofitex.com
213.16.54.51	A	ogneborec.org
213.16.54.51	A	www.ogneborec.org
213.16.54.51	A	mail.ogneborec.org
213.16.54.77	A	www.gocis.bg
213.16.54.77	A	mail.gocis.bg
213.16.54.83	PTR	www.rconsulting.bg
213.16.54.126	A	ns2.sofitex.com
213.16.54.134	A	elmotbg.org
213.16.55.34	A+PTR	go.btc-net.bg
213.16.55.51	PTR	mail.asboiana.com
213.16.55.51	A	mail.dalcia.com
213.16.55.51	A	mail.siemenselveko.bg
213.16.55.66	PTR	netinfo.bg
213.16.55.67	PTR	my.gbg.bg
213.16.55.133	A	mail.callpoint-group.com
213.16.55.146	A+PTR	mail.ellatzite-med.com
213.16.55.147	A+PTR	mail2.ellatzite-med.com
213.16.55.148	A	ns1.ellatzite-med.com
213.16.55.151	A	213-16-55-151.ip.btc-net.bg
213.16.55.162	PTR	213-16-55-162.ip.btc-net.bg
213.16.56.1	A+PTR	ns.tvskat.net
213.16.56.1	A	ns1.webnoc.net
213.16.56.2	A+PTR	kimba.tvskat.net
213.16.56.3	A+PTR	cms.tvskat.net
213.16.56.18	A	skat.bg
213.16.56.18	A	www.skat.bg
213.16.56.33	A	speed.tvskat.net
213.16.56.194	A	nesebar.tvskat.net
213.16.56.195	A+PTR	skat-nas0.tvskat.net
213.16.56.222	A+PTR	lan.tvskat.net
213.16.57.20	A+PTR	softman.miner.blue
213.16.57.20	A	miner.blue
213.16.57.20	A	mail.miner.blue
213.16.57.32	A	mail.iboris.eu
213.16.57.142	PTR	213-16-57-142.btc-net.bg
213.16.57.168	PTR	213-16-57-168.btc-net.bg
213.16.57.168	A	ns1.xn--80aa3a4a0a.eu
213.16.57.168	A	sakramento.eu
213.16.57.244	PTR	213-16-57-244.btc-net.bg
213.16.57.244	A	titani-bg.com
213.16.58.245	A	tax.nesebar.bg
213.16.58.249	A+PTR	nesebar.bg
213.16.58.249	A	mail.nesebar.bg
213.16.58.250	A+PTR	ns.nesebar.bg
213.16.58.254	PTR	ns2.nesebar.bg
213.16.59.74	A	www.discover.bg
213.16.59.164	PTR	213-16-59-164.ip.btc-net.bg
213.16.59.164	A	ns02.gdin.bg
213.16.59.165	PTR	213-16-59-165.ip.btc-net.bg
213.16.59.165	A	ns01.gdin.bg
213.16.59.165	A	gdin.bg
213.16.59.166	A+PTR	mail.gdin.bg
213.16.61.255	PTR	213-16-61-255.ip.btc-net.bg
213.16.62.8	A	stardust.webtocloud.net
213.16.62.8	A	mail.webtocloud.net
213.16.62.16	A+PTR	vmcnt-srv05.atsoftconsult-bg.com
213.16.62.16	A	atsoftconsult-bg.com
213.16.62.41	PTR	ns02.elpak.com
213.16.62.41	A	seca-elpak.bg
213.16.62.41	A	www.seca-elpak.bg
213.16.62.62	A	kalin.bg.eu.org
213.16.62.62	A	ns1.kalin.eu.org
213.16.62.62	A	mail.kalin.bg.eu.org
213.16.62.90	A	voip.atsoftconsult-bg.com
213.16.62.128	A	xmelev.net
213.16.62.128	A	mail.xmelev.net
213.16.62.197	PTR	213-16-62-197.btc-net.bg
213.16.62.197	A	kikimor.com
213.16.62.199	PTR	213-16-62-199.btc-net.bg
213.16.62.204	A	remlink.ru
213.16.62.205	A	tolostoi.com
213.16.63.196	PTR	213-16-63-196.ip.btc-net.bg
213.16.63.196	A	ns3.justice.bg
213.16.63.200	A+PTR	213-16-63-200.ip.btc-net.bg
213.16.63.201	PTR	213-16-63-201.ip.btc-net.bg
213.16.63.255	PTR	213-16-63-255.ip.btc-net.bg