Robtex

Up: 216.198.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.198.92.0/23
Down right: 216.198.94.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.198.92.32	PTR	216-198-92-32.client.cypresscom.net
216.198.92.35	PTR	surveys.mapsnet.com
216.198.92.35	A	feedback-reuters.com
216.198.92.45	PTR	216-198-92-45.client.cypresscom.net
216.198.92.46	PTR	216-198-92-46.client.cypresscom.net
216.198.92.46	A	mail.feedback-reuters.com
216.198.92.46	A	mail.reuters-feedback.com
216.198.92.89	PTR	216-198-92-89.client.cypresscom.net
216.198.93.1	PTR	216-198-93-1.client.cypresscom.net
216.198.93.5	PTR	216-198-93-5.client.cypresscom.net
216.198.93.36	PTR	216-198-93-36.client.cypresscom.net
216.198.93.40	PTR	216-198-93-40.client.cypresscom.net
216.198.93.56	PTR	216-198-93-56.client.cypresscom.net
216.198.93.164	PTR	216-198-93-164.client.cypresscom.net
216.198.94.2	PTR	216-198-94-2.client.cypresscom.net
216.198.94.52	PTR	216-198-94-52.client.cypresscom.net
216.198.94.52	A	cwcidonline.com
216.198.94.59	PTR	216-198-94-59.client.cypresscom.net
216.198.94.62	PTR	216-198-94-62.client.cypresscom.net
216.198.94.154	A	mail.d-dfinancial.com
216.198.94.163	A	mail.municapital.com
216.198.94.210	A	maildallas.studergroup.com
216.198.94.212	A+PTR	mysg2dallas.studergroup.com
216.198.94.255	PTR	216-198-94-255.client.cypresscom.net
216.198.95.58	A	mail.whittierbank.com
216.198.95.98	A	aaxischina.com.cn
216.198.95.98	A	aaxischina.com
216.198.95.98	A	aaxisgroup.com.cn
216.198.95.114	PTR	entravision.com
216.198.95.115	PTR	entravision.com
216.198.95.116	PTR	entravision.com
216.198.95.117	PTR	entravision.com
216.198.95.119	PTR	entravision.com
216.198.95.120	PTR	entravision.com
216.198.95.121	PTR	entravision.com
216.198.95.122	PTR	entravision.com
216.198.95.123	PTR	entravision.com
216.198.95.124	PTR	entravision.com
216.198.95.125	PTR	entravision.com
216.198.95.126	PTR	entravision.com
216.198.95.126	A	mail.entravision.net