Robtex

Up: 210.57.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 210.57.104.0/22
Down right: 210.57.108.0/22

IP	Type	Hostname
210.57.104.9	PTR	f-aichi-104009-l3.zero.ad.jp
210.57.104.26	PTR	f-aichi-104026-l3.zero.ad.jp
210.57.104.50	PTR	f-aichi-104050-l3.zero.ad.jp
210.57.104.89	PTR	f-aichi-104089-l3.zero.ad.jp
210.57.104.129	PTR	f-shizuoka-104129-l3.zero.ad.jp
210.57.104.144	PTR	f-shizuoka-104144-l3.zero.ad.jp
210.57.104.154	PTR	f-shizuoka-104154-l3.zero.ad.jp
210.57.104.162	PTR	f-shizuoka-104162-l3.zero.ad.jp
210.57.104.176	PTR	f-shizuoka-104176-l3.zero.ad.jp
210.57.104.179	PTR	f-shizuoka-104179-l3.zero.ad.jp
210.57.104.195	PTR	f-shizuoka-104195-l3.zero.ad.jp
210.57.104.201	PTR	f-shizuoka-104201-l3.zero.ad.jp
210.57.104.211	PTR	f-shizuoka-104211-l3.zero.ad.jp
210.57.104.227	PTR	f-shizuoka-104227-l3.zero.ad.jp
210.57.104.233	PTR	f-shizuoka-104233-l3.zero.ad.jp
210.57.105.26	PTR	unknown.telstraglobal.net
210.57.105.41	PTR	unknown.telstraglobal.net
210.57.105.99	PTR	unknown.telstraglobal.net
210.57.105.106	PTR	unknown.telstraglobal.net
210.57.105.130	PTR	unknown.telstraglobal.net
210.57.105.152	PTR	unknown.telstraglobal.net
210.57.105.168	PTR	unknown.telstraglobal.net
210.57.105.184	PTR	unknown.telstraglobal.net
210.57.105.201	PTR	unknown.telstraglobal.net
210.57.105.218	PTR	unknown.telstraglobal.net
210.57.106.112	PTR	unknown.telstraglobal.net
210.57.107.170	PTR	unknown.telstraglobal.net
210.57.108.56	PTR	unknown.telstraglobal.net
210.57.108.241	PTR	unknown.telstraglobal.net
210.57.109.114	PTR	unknown.telstraglobal.net
210.57.110.152	PTR	unknown.telstraglobal.net
210.57.111.192	PTR	unknown.telstraglobal.net