Robtex

Up: 159.253.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 159.253.17.0/25
Down right: 159.253.17.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
159.253.17.14	PTR	mail.bystroff35.ru
159.253.17.14	A	mail.ronbog.net
159.253.17.14	A	ns1.a-star.xyz
159.253.17.24	A	fastcheck24.com
159.253.17.78	A+PTR	mail.tdkarmin.ru
159.253.17.78	A	mail.mksp.ru
159.253.17.83	A+PTR	mxer.diamondage.ru
159.253.17.84	A+PTR	mxe.diamondage.ru
159.253.17.94	A	cosmoslogistica.com
159.253.17.205	PTR	fps4.fv.ee
159.253.17.213	PTR	fps12.fv.ee
159.253.17.218	PTR	fps17.fv.ee
159.253.17.221	PTR	fps20.fv.ee
159.253.17.226	PTR	mxe.alaskaoriginale.ru
159.253.17.226	A	mx2.alaskaoriginale.ru