Robtex

Up: 210.42.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 210.42.240.0/21
Down right: 210.42.248.0/21

IP	Type	Hostname
210.42.241.1	A+PTR	dns.htu.edu.cn
210.42.241.1	A	dns.henannu.edu.cn
210.42.241.1	A	dns.htu.cn
210.42.241.2	A+PTR	dns2.htu.edu.cn
210.42.241.2	PTR	time.htu.edu.cn
210.42.241.6	PTR	www.htu.edu.cn
210.42.241.8	PTR	lab.htu.edu.cn
210.42.241.19	A+PTR	mail.htu.cn
210.42.241.19	A	mail.htu.edu.cn
210.42.241.22	A	english.htu.cn
210.42.241.109	A+PTR	net.htu.edu.cn
210.42.241.109	A	net.htu.cn
210.42.249.134	A	wa.htu.edu.cn
210.42.255.114	A+PTR	job.htu.cn
210.42.255.114	A+PTR	stu.htu.cn
210.42.255.117	A	class.htu.cn
210.42.255.250	A	dns.hist.edu.cn