Robtex

Up: 213.16.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 213.16.40.0/22
Down right: 213.16.44.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.16.41.195	A	nerita.net
213.16.41.197	A+PTR	mail.smolyan.bg
213.16.41.202	A	studyindenmark.eu
213.16.41.202	A	www.valtox.eu
213.16.41.202	A	scandinavianstudy.bg
213.16.42.2	PTR	213-16-42-2.ip.btc-net.bg
213.16.42.50	PTR	dataparkinc.com
213.16.42.66	PTR	66_42.btc-net.bg
213.16.42.97	PTR	97_42.btc-net.bg
213.16.42.98	A+PTR	213-16-42-98.ip.btc-net.bg
213.16.42.100	A	www.sofiyskavoda.bg
213.16.42.106	PTR	213-16-42-106.ip.btc-net.bg
213.16.42.106	A	pns.sofiyskavoda.bg
213.16.42.107	PTR	213-16-42-107.ip.btc-net.bg
213.16.42.107	A	sns.sofiyskavoda.bg
213.16.42.109	A	mail.sofiyskavoda.bg
213.16.42.170	PTR	mail.ims.bg
213.16.42.170	A	dcu1.skims.sumy.ua
213.16.42.170	A	ftp.ims.bg
213.16.42.171	PTR	egpex01.enel.bg
213.16.42.171	A	www.ims.bg
213.16.42.190	A	bgsofexc01.delta.gr
213.16.42.193	PTR	usitcolours.bg
213.16.42.210	PTR	210_42.btc-net.bg
213.16.42.240	PTR	240_42.btc-net.bg
213.16.43.51	PTR	51_43.btc-net.bg
213.16.43.51	A	ml1.mkmladost.eu
213.16.43.83	A	awsbg.com
213.16.43.118	A	mail.piccadilly.bg
213.16.43.118	A	smtp2.piccadilly.bg
213.16.45.2	A+PTR	home.dinamika.bg
213.16.45.2	A	dinamika.bg
213.16.45.6	A	obstina.dryanovo.bg
213.16.45.18	A+PTR	boriana.boriananet.com
213.16.45.18	A	boriana.boriana-bg.com
213.16.45.215	A	mdt.boriananet.com
213.16.46.50	PTR	50_46.btc-net.bg
213.16.46.83	A	mail.bg.global-imi.com
213.16.46.94	A+PTR	mail2.bg.global-imi.com
213.16.46.100	A+PTR	bridge.vstvarna.com
213.16.46.114	A	hive.support.bg
213.16.46.117	A	ns2.support.bg
213.16.46.117	A	green.support.bg
213.16.46.130	PTR	pirus.euroccor.com
213.16.46.138	A+PTR	213-16-46-138.ip.btc-net.bg
213.16.46.154	PTR	mail.saglasie.bg
213.16.46.210	A	mail.carlsberg.bg
213.16.46.211	PTR	211_46.btc-net.bg
213.16.46.211	A	mcp.cellum.bg
213.16.46.211	A	cp.cellum.bg
213.16.46.212	A	topup.cellum.bg
213.16.46.233	PTR	ns.bmlease.com
213.16.46.234	A+PTR	mail.bmlease.com
213.16.46.234	A	www.bmlease.com
213.16.46.234	A	ns.bmlease.com
213.16.46.243	A	mail.cellum.bg
213.16.46.251	PTR	213-16-46-251.ip.btc-net.bg
213.16.46.251	A	vpn.prb.bg
213.16.47.139	A	mail.mballom.bg
213.16.47.223	A+PTR	213-16-47-223.ip.btc-net.bg
213.16.47.224	A+PTR	213-16-47-224.ip.btc-net.bg
213.16.47.227	PTR	227_47.btc-net.bg
213.16.47.250	A	mail.arcadia-service.bg
213.16.47.250	A	ns2.arcadia-service.bg
213.16.47.250	A	mail.efg.bg