Robtex

Up: 212.101.98.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.101.98.0/25
Down right: 212.101.98.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.101.98.34	PTR	smtp96.mynet.com
212.101.98.47	PTR	smtp96.mynet.com
212.101.98.61	A	999.email.mynet.com
212.101.98.72	PTR	smtp96.mynet.com
212.101.98.80	A+PTR	smtp96.mynet.com
212.101.98.86	PTR	pop.mynet.com
212.101.98.91	PTR	unsubscribe.mynet.com
212.101.98.91	A	om.mynet.com
212.101.98.99	A	adresdefteri3.mynet.com
212.101.98.116	A	news.mynet.com
212.101.98.122	A	www.mynetgroup.com
212.101.98.122	A	mynetgroup.com
212.101.98.139	A	vidyoroll.com
212.101.98.140	A	5563.email.mynet.com
212.101.98.140	A	5561.email.mynet.com
212.101.98.140	A	5562.email.mynet.com
212.101.98.141	PTR	smtp96.mynet.com
212.101.98.141	A	5571.email.mynet.com
212.101.98.141	A	5573.email.mynet.com
212.101.98.142	PTR	pop.mynet.com
212.101.98.142	A	5582.email.mynet.com
212.101.98.142	A	5581.email.mynet.com
212.101.98.143	PTR	smtp96.mynet.com
212.101.98.143	A	5592.email.mynet.com
212.101.98.143	A	5591.email.mynet.com
212.101.98.144	PTR	smtp96.mynet.com
212.101.98.144	A	5602.email.mynet.com
212.101.98.144	A	5603.email.mynet.com
212.101.98.145	A	5611.email.mynet.com
212.101.98.158	A	popsmtp.mynet.com
212.101.98.159	A	popsmtp.mynet.com
212.101.98.160	A	popsmtp.mynet.com
212.101.98.161	A+PTR	popsmtp.mynet.com
212.101.98.162	PTR	pop.mynet.com
212.101.98.162	A+PTR	popsmtp.mynet.com
212.101.98.163	A	popsmtp.mynet.com
212.101.98.164	A	popsmtp.mynet.com
212.101.98.164	A	mrmail.mynet.com
212.101.98.164	A	mail.mynetmailer.com
212.101.98.165	A+PTR	mbmail.mynet.com
212.101.98.165	PTR	mbr1.mynet.com
212.101.98.165	PTR	mbr10.mynet.com
212.101.98.179	A	mobiledata.mynet.com
212.101.98.187	PTR	pop.mynet.com
212.101.98.187	A+PTR	smtp.mynet.com
212.101.98.197	A	197.email.mynet.com
212.101.98.211	A	popsmtp.mynet.com
212.101.98.214	PTR	smtp96.mynet.com
212.101.98.217	PTR	pop.mynet.com
212.101.98.217	PTR	popsmtp.mynet.com
212.101.98.217	A	148db.email.mynet.com