Robtex

Up: 210.57.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 210.57.48.0/22
Down right: 210.57.52.0/22

IP	Type	Hostname
210.57.48.22	PTR	unknown.telstraglobal.net
210.57.48.33	PTR	unknown.telstraglobal.net
210.57.48.35	PTR	unknown.telstraglobal.net
210.57.48.38	PTR	unknown.telstraglobal.net
210.57.48.47	PTR	unknown.telstraglobal.net
210.57.48.53	PTR	unknown.telstraglobal.net
210.57.48.78	PTR	unknown.telstraglobal.net
210.57.48.80	PTR	unknown.telstraglobal.net
210.57.48.81	PTR	unknown.telstraglobal.net
210.57.48.90	PTR	unknown.telstraglobal.net
210.57.48.94	PTR	unknown.telstraglobal.net
210.57.48.99	PTR	unknown.telstraglobal.net
210.57.48.117	PTR	unknown.telstraglobal.net
210.57.48.123	PTR	unknown.telstraglobal.net
210.57.48.135	PTR	unknown.telstraglobal.net
210.57.48.138	PTR	unknown.telstraglobal.net
210.57.48.159	PTR	unknown.telstraglobal.net
210.57.48.165	PTR	unknown.telstraglobal.net
210.57.48.172	PTR	unknown.telstraglobal.net
210.57.48.173	PTR	unknown.telstraglobal.net
210.57.48.180	PTR	unknown.telstraglobal.net
210.57.48.182	PTR	unknown.telstraglobal.net
210.57.48.188	PTR	unknown.telstraglobal.net
210.57.48.206	PTR	unknown.telstraglobal.net
210.57.48.219	PTR	unknown.telstraglobal.net
210.57.48.236	PTR	unknown.telstraglobal.net
210.57.49.8	A	ns-l3-01.accelia.net
210.57.49.35	PTR	unknown.telstraglobal.net
210.57.49.169	PTR	unknown.telstraglobal.net
210.57.50.10	PTR	10.50.57.210.adispace.co.jp
210.57.50.17	PTR	17.50.57.210.adispace.co.jp
210.57.50.19	PTR	19.50.57.210.adispace.co.jp
210.57.50.25	PTR	25.50.57.210.adispace.co.jp
210.57.50.26	PTR	26.50.57.210.adispace.co.jp
210.57.50.41	PTR	41.50.57.210.adispace.co.jp
210.57.50.107	PTR	unknown.telstraglobal.net
210.57.50.124	PTR	210.57.50.124
210.57.50.153	PTR	nsint1.adispace.co.jp
210.57.50.163	PTR	unknown.telstraglobal.net
210.57.50.195	PTR	195.50.57.210.adispace.co.jp
210.57.50.217	PTR	217.50.57.210.adispace.co.jp
210.57.50.232	PTR	unknown.telstraglobal.net
210.57.50.241	PTR	unknown.telstraglobal.net