Robtex

Up: 193.41.184.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 193.41.188.0/23
Down right: 193.41.190.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.41.188.62	PTR	net188-host62.bsbg.net
193.41.188.62	A	iptv.ustrem.org
193.41.188.205	PTR	net188-host205.bsbg.net
193.41.189.202	A+PTR	mail01.bobs.bg
193.41.189.202	A	mail01.borica.bg
193.41.189.203	A+PTR	mail02.bobs.bg
193.41.189.203	A	mail02.borica.bg
193.41.189.251	PTR	net189-host251.bsbg.net
193.41.190.2	PTR	net190-host2.bsbg.net
193.41.190.2	A	bsmail.bsbg.net
193.41.190.4	A+PTR	relay02.bobs.bg
193.41.190.4	A	dns1.bsbg.net
193.41.190.4	A	dns1.borica.bg
193.41.190.5	A+PTR	relay01.bobs.bg
193.41.190.6	PTR	net190-host6.bsbg.net
193.41.190.7	PTR	web.bobs.bg
193.41.190.9	PTR	net190-host9.bsbg.net
193.41.190.9	A	www.express-m.com
193.41.190.11	PTR	mailrelay.bsbg.net
193.41.190.11	A	www.bgoug.org
193.41.190.11	A	mx01.b-trust.org
193.41.190.12	PTR	net190-host12.bsbg.net
193.41.190.12	A	mobi-b.bg
193.41.190.12	A	www.mobi-b.bg
193.41.190.13	PTR	net190-host13.bsbg.net
193.41.190.22	PTR	net190-host22.bsbg.net
193.41.190.22	A	www.efaktura.bg
193.41.190.22	A	efakturabg.net
193.41.190.41	A+PTR	mx01.b-trust.org
193.41.190.42	A+PTR	mail.b-trust.org
193.41.190.54	A	proxy2.bsbg.net
193.41.190.63	PTR	net190-host63.bsbg.net
193.41.190.70	PTR	net190-host70.bsbg.net
193.41.190.70	A	aixbs.b-trust.org
193.41.190.70	A	bs.b-trust.org
193.41.190.84	PTR	net190-host84.bsbg.net
193.41.190.84	A	www.b-trust.bg
193.41.190.84	A	www.b-trust.org
193.41.190.87	A	exht1.bsbg.net
193.41.190.88	A+PTR	exht2.bsbg.net
193.41.190.88	A	b-trust.bg
193.41.190.100	PTR	net190-host100.bsbg.net
193.41.190.100	A	test.b-trust.org
193.41.190.102	PTR	net190-host102.bsbg.net
193.41.190.102	A	mobb.bg
193.41.190.117	A	sip.bobs.bg
193.41.191.35	A	benzin.bg