Robtex

Up: 210.245.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 210.245.248.0/22
Down right: 210.245.252.0/22

IP	Type	Hostname
210.245.248.4	A	siixftp.siix.com.hk
210.245.248.8	PTR	mail01.siix.com.hk
210.245.248.8	A	sxdnx1.siix.com.hk
210.245.248.9	A	sxdns2.siix.com.hk
210.245.249.10	PTR	tradebingo.com
210.245.251.136	PTR	mail.ljintl.com
210.245.251.137	PTR	mail.ljintl.com
210.245.251.138	PTR	mail.ljintl.com
210.245.251.139	PTR	mail.ljintl.com