Robtex

Up: 159.224.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 159.224.4.0/23
Down right: 159.224.6.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
159.224.4.33	PTR	33.4.224.159.triolan.net
159.224.4.33	A	inway.com.ua
159.224.4.255	PTR	255.4.224.159.triolan.net
159.224.5.0	PTR	0.5.224.159.triolan.net
159.224.5.188	PTR	188.5.224.159.triolan.net
159.224.6.0	PTR	0.6.224.159.triolan.net
159.224.6.2	PTR	2.6.224.159.triolan.net
159.224.7.0	PTR	0.7.224.159.triolan.net
159.224.7.28	A	ns1.testorium.net
159.224.7.28	A	artcoolstudio.com
159.224.7.28	A	www.testorium.net
159.224.7.38	PTR	38.7.224.159.triolan.net
159.224.7.123	PTR	123.7.224.159.triolan.net
159.224.7.146	PTR	146.7.224.159.triolan.net
159.224.7.233	A+PTR	mail.part-al.com
159.224.7.233	A	www.part-al.com
159.224.7.233	A	1way4.net