Robtex

Up: 217.19.220.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.19.221.0/25
Down right: 217.19.221.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.19.221.0	A+PTR	0.221.19.217.sta.idknet.com
217.19.221.2	A	gameserver1.idknet.com
217.19.221.44	PTR	mail.kvint.biz
217.19.221.44	A	ns1.kvint.md
217.19.221.117	PTR	117.221.19.217.sta.idknet.com
217.19.221.117	A	www.onlinelesson.rfpgu.ru
217.19.221.117	A	*.onlinelesson.rfpgu.ru
217.19.221.136	PTR	136.221.19.217.sta.idknet.com
217.19.221.136	A	limexs.com
217.19.221.192	PTR	192.221.19.217.sta.idknet.com
217.19.221.192	A	strahovanie.md
217.19.221.192	A	www.strahovanie.md
217.19.221.203	A	203.221.19.217.sta.idknet.com
217.19.221.213	A	213.221.19.217.sta.idknet.com
217.19.221.242	A	info.wexpert.ru
217.19.221.242	A	mail.wexpert.ru
217.19.221.243	PTR	243.221.19.217.sta.idknet.com
217.19.221.243	A	biznesssoft.ru
217.19.221.251	A+PTR	mail.aquatir.md