Robtex

Up: 216.163.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 216.163.128.0/21
Down right: 216.163.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.163.128.10	PTR	peivpn.playboy.com
216.163.128.20	A	www.peiremote2.com
216.163.128.20	A	peiremote2.com
216.163.128.130	PTR	ext.204.la.playboy.net
216.163.133.255	A	bigstreak.com
216.163.136.22	A	chat2-chi.peiecommerce.com
216.163.136.23	A+PTR	ipartner.playboy.com
216.163.136.24	A	ns1-chi.playboy.com
216.163.136.27	A	ads-admin.playboy.com
216.163.136.34	A	ns2-chi.playboy.com
216.163.136.141	A+PTR	mx01.la.playboy.com
216.163.136.143	A	peiemail.com
216.163.136.144	PTR	mx.la.playboy.com
216.163.136.147	A	peiemail2.com
216.163.137.1	PTR	secure2.playboy.com
216.163.137.2	PTR	secure2.spicetv.com
216.163.137.3	A	tahirkheli.net
216.163.137.16	PTR	tours.playboy.com
216.163.137.18	PTR	playboytvclub.com
216.163.137.61	A	click.adult.com
216.163.137.61	A	tour.adultrealitypass.com
216.163.137.61	A	root.10dollarporn.com
216.163.137.68	A	dateaplayboymodel.com
216.163.137.75	A	d1.playboy.com
216.163.137.85	A	pei-ads.com
216.163.137.85	A	pei-ads.playboy.com
216.163.137.90	A	down.spicetv.com
216.163.137.90	A	down.adult.com
216.163.137.103	A	legal.playboy.com
216.163.137.103	A	legal.spicetv.com
216.163.137.105	A	pei-ads.thesmokingjacket.com
216.163.137.127	A	members.clubjenna.spicetv.com
216.163.137.128	A	wwwsophiarossi.com
216.163.137.128	A	clubjennapinups.com
216.163.142.19	A	im.peichat.com
216.163.142.19	A	peichat.com
216.163.142.20	PTR	peiemail.com
216.163.142.24	A	peipress.com
216.163.142.24	A	www.peiinvestor.com
216.163.142.40	A	playboylicensing.com
216.163.142.40	A	playboyenterprises.com
216.163.142.48	A	mx2.chi.playboy.com
216.163.142.49	A	store.spicetv.com
216.163.142.49	A	wild11.adultplatinum.com
216.163.142.49	A	premium.adult.com
216.163.142.68	A	peimobile.com
216.163.142.135	PTR	mirrors.playboy.com
216.163.143.10	PTR	peiremote1.com
216.163.143.14	A	outside-mail.playboy.com
216.163.143.130	A+PTR	fw.chi.playboy.com
216.163.143.133	A+PTR	ops.playboy.com