Robtex

Up: 87.239.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 87.239.152.0/23
Down right: 87.239.154.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.239.152.1	A+PTR	sof-border.sof.zulu.bg
87.239.152.14	A+PTR	dns-server-a.sof.zulu.bg
87.239.152.14	A	pns.sstech.biz
87.239.152.14	A	ns.sstech.biz
87.239.152.15	PTR	mail.sstech.biz
87.239.152.16	A+PTR	dns-server-b.sof.zulu.bg
87.239.152.16	A	dns.sstech.biz
87.239.152.16	A	b.zulu.bg
87.239.152.29	PTR	mail.daem0n.net
87.239.152.29	A	dns.daem0n.net
87.239.152.50	PTR	cp01.sof.zulu.bg
87.239.152.50	A	ns1.zuludns.net
87.239.152.50	A	bet-portal.eu
87.239.152.131	A	ns1.fishable.bg
87.239.152.131	A	fishable.eu
87.239.152.131	A	mail.fishable.us
87.239.152.133	PTR	mitpress-web1.managed.zulu.bg
87.239.152.133	A	wwwroot.manager.bg
87.239.152.133	A	rk0.manager.bg
87.239.152.135	PTR	135.152.239.87-rev.sstech.biz
87.239.152.136	PTR	debian-media.vps.zulu.bg
87.239.152.137	PTR	m6solutions.vps.zulu.bg
87.239.152.137	A	m6webgroup.com
87.239.152.137	A	m6mall.com
87.239.152.140	A+PTR	web1.bnews.bg
87.239.152.140	A	bpost.bg
87.239.152.140	A	*.bpost.bg
87.239.152.141	PTR	bnews.bnews.bg
87.239.152.144	A+PTR	mail.bnews.bg
87.239.152.144	A	mail.delfin.bg
87.239.152.144	A	mail.blife.bg
87.239.152.150	PTR	host-150.net-152.sof.zulu.bg
87.239.152.151	PTR	host-151.net-152.sof.zulu.bg
87.239.153.130	PTR	host-130.net-153.sof.zulu.bg
87.239.153.131	A	bingotop100.net
87.239.153.145	PTR	host-145.net-153.sof.zulu.bg
87.239.153.145	A	mail.rubin-bg.com
87.239.153.145	A	rubin-bg.com
87.239.153.234	PTR	host-234.net-153.sof.zulu.bg
87.239.154.129	PTR	129.154.239.87-rev.sstech.biz
87.239.154.130	PTR	130.154.239.87-rev.sstech.biz
87.239.154.130	A	dynamic-arms.com
87.239.154.130	A	www.dynamic-arms.com
87.239.154.133	A+PTR	mail.enforcer.bg
87.239.154.133	A	mail.t-class.org
87.239.154.138	A+PTR	ns1.enforcer.bg
87.239.154.138	A	ns1.exponentic.com
87.239.154.158	PTR	www.dynamic-arms.com
87.239.154.158	A	mail.dynamic-arms.com
87.239.154.178	PTR	carbg.managed.zulu.bg
87.239.154.178	A	mstudio-bg.com
87.239.154.178	A	mail.balkanhorses.com
87.239.154.179	PTR	www.spa-consult.eu
87.239.154.180	PTR	180.154.239.87-rev.sstech.biz
87.239.154.180	A	mail.semka.org
87.239.154.180	A	semka.org
87.239.154.181	PTR	www.eim-trade.com
87.239.154.181	A	arteeiss.com
87.239.154.181	A	mail.eim-trade.com
87.239.154.182	PTR	182.154.239.87-rev.sstech.biz
87.239.154.188	PTR	188.154.239.87-rev.sstech.biz
87.239.154.188	A	ns4.zon-dns.com
87.239.154.188	A	ns3.zon-dns.com
87.239.154.193	PTR	193.154.239.87-rev.sstech.biz
87.239.154.193	A	www.cacaobeach.bg
87.239.154.194	A	www.hoteldune.com
87.239.154.196	A	www.myplik.com
87.239.155.3	PTR	router2.sof1.zulu.bg
87.239.155.3	A	ns2.bric-itt.biz
87.239.155.3	A	ns2.intels.biz
87.239.155.4	PTR	host-4.net-155.sof.zulu.bg
87.239.155.4	A	www.solk.eu
87.239.155.4	A	solk.eu
87.239.155.7	PTR	host-7.net-155.sof.zulu.bg
87.239.155.8	PTR	host-8.net-155.sof.zulu.bg
87.239.155.9	PTR	host-9.net-155.sof.zulu.bg
87.239.155.24	PTR	host-24.net-155.sof.zulu.bg
87.239.155.223	PTR	host-223.net-155.sof.zulu.bg