Robtex

Up: 216.208.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 216.208.24.0/22
Down right: 216.208.28.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.208.24.68	A+PTR	mail.heliene.com
216.208.25.2	PTR	chinesefamilyso.com
216.208.25.2	PTR	chinesefashionda.com
216.208.25.2	PTR	primead.com
216.208.25.18	PTR	host18.primead.com
216.208.25.23	A	configure.savaria.com
216.208.25.36	A+PTR	smtp.couplesresortdigest.ca
216.208.25.36	A	couplesresortdigest.ca
216.208.25.51	A	dealer.torlys.com
216.208.25.52	A	lkm-eng.com
216.208.25.54	A+PTR	mx.torlys.com
216.208.25.55	A	webmail.torlys.com
216.208.25.74	PTR	mail.e-salestools.com
216.208.25.74	PTR	secure.e-salestools.com
216.208.25.74	PTR	www.e-salestools.com
216.208.25.90	A	skymail.skydatacorp.com
216.208.25.188	A	av.lifemark.ca
216.208.25.190	A	www.activehealthservices.ca
216.208.26.71	PTR	och.ca
216.208.26.71	PTR	mail.och.ca
216.208.26.134	A	mail.yorkland.net
216.208.26.134	A	mail.yorklandcontrols.net
216.208.26.134	A	mail.yorklandcontrols.com
216.208.26.220	PTR	chat.islam.am
216.208.26.220	PTR	discuss.islam.am
216.208.26.220	PTR	freemail.islam.am
216.208.26.222	PTR	islam.am
216.208.26.222	PTR	caircan.ca
216.208.26.222	PTR	canadianyouth.ca
216.208.27.227	A+PTR	mail.laratech.com
216.208.29.77	A	mail.wasip.com
216.208.29.106	A+PTR	courrier.rcrquebec.com
216.208.29.109	A+PTR	courrier2.rcrquebec.com
216.208.29.130	A+PTR	mail.optech.ca
216.208.29.130	A+PTR	mail.optech.com
216.208.29.130	A+PTR	mail.optechint.com
216.208.29.131	PTR	ftp.ilris-3d.com
216.208.29.131	PTR	www.ilris-3d.com
216.208.29.131	PTR	ftp.ilris-ortho.com
216.208.29.134	A	mail.altm.ca
216.208.29.229	A	ceselfmanagement.ca
216.208.29.229	A	www.ceselfmanagement.ca
216.208.30.44	PTR	mail.classeaudio.com
216.208.30.252	PTR	www.managemyhome.com
216.208.31.190	A	mail.hockley.com