Robtex

Up: 210.215.48.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 210.215.48.0/25
Down right: 210.215.48.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.215.48.3	PTR	1010.syd.nexon.com.au
210.215.48.8	PTR	core4.syd.nexon.com.au
210.215.48.100	PTR	avmx01.nexon.com.au
210.215.48.100	A	mx1.nexon.com.au
210.215.48.100	A	mx1.nexon.net.au
210.215.48.101	A+PTR	avmx02.nexon.com.au
210.215.48.125	PTR	mail.morse.com.au
210.215.48.126	PTR	fw-hme0.syd.nexon.com.au
210.215.48.126	A	sydney.flex.com.au
210.215.48.253	PTR	syd-2924-colo-1.syd.nexon.com.au