Robtex

Up: 216.52.28.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 216.52.30.0/24
Down right: 216.52.31.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.52.30.71	A	sjc.login.pathofexile.com
216.52.30.72	A	sjc2.login.pathofexile.com
216.52.30.148	A	mail.hellaventures.com
216.52.30.148	A	hellaventures.com
216.52.30.148	A	www.hellaventures.com
216.52.31.1	PTR	performance-0a.sfj.pnap.net
216.52.31.4	PTR	performance-1.sfj.pnap.net
216.52.31.5	A+PTR	expertlistings.info
216.52.31.6	PTR	fcp-6.sfj.pnap.net
216.52.31.6	A	expertlistings.info
216.52.31.7	A	expertlistings.info
216.52.31.49	PTR	sjc-delivery-8.sys.adgear.com
216.52.31.49	A	dcs.adgear.com.tech.akadns.net
216.52.31.49	A	alp.adgear.com.tech.akadns.net
216.52.31.59	PTR	sjc-delivery-9.sys.adgear.com
216.52.31.59	A	dcs.adgear.com.tech.akadns.net
216.52.31.59	A	alp.adgear.com.tech.akadns.net
216.52.31.60	A+PTR	sjc-delivery-10.sys.adgear.com
216.52.31.60	A	alp.adgear.com.tech.akadns.net
216.52.31.60	A	rtb.adgrx.com
216.52.31.73	PTR	sjc-delivery-7.sys.adgear.com
216.52.31.73	A	dcs.adgear.com.tech.akadns.net
216.52.31.73	A	alp.adgear.com.tech.akadns.net
216.52.31.83	A	dcs.adgear.com.tech.akadns.net
216.52.31.83	A	alp.adgear.com.tech.akadns.net
216.52.31.83	A	d.adgear.com
216.52.31.84	A	alp.adgear.com.tech.akadns.net
216.52.31.84	A	d.runadtag.com
216.52.31.84	A	rtbx.adgrx.com