Robtex

Up: 176.51.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 176.51.96.0/20
Down right: 176.51.112.0/20

IP	Type	Hostname
176.51.96.123	PTR	b-internet.176.51.96.123.nsk.rt.ru
176.51.96.227	PTR	b-internet.176.51.96.227.nsk.rt.ru
176.51.97.112	PTR	b-internet.176.51.97.112.nsk.rt.ru
176.51.99.151	PTR	b-internet.176.51.99.151.nsk.rt.ru
176.51.99.211	PTR	b-internet.176.51.99.211.nsk.rt.ru
176.51.101.177	PTR	b-internet.176.51.101.177.nsk.rt.ru
176.51.102.205	PTR	b-internet.176.51.102.205.nsk.rt.ru
176.51.103.100	PTR	b-internet.176.51.103.100.nsk.rt.ru
176.51.103.176	PTR	b-internet.176.51.103.176.nsk.rt.ru
176.51.104.55	PTR	b-internet.176.51.104.55.nsk.rt.ru
176.51.104.102	PTR	b-internet.176.51.104.102.nsk.rt.ru
176.51.107.10	PTR	b-internet.176.51.107.10.nsk.rt.ru
176.51.109.117	PTR	b-internet.176.51.109.117.nsk.rt.ru
176.51.111.104	PTR	b-internet.176.51.111.104.nsk.rt.ru
176.51.112.192	PTR	b-internet.176.51.112.192.nsk.rt.ru
176.51.114.71	PTR	b-internet.176.51.114.71.nsk.rt.ru
176.51.114.117	PTR	b-internet.176.51.114.117.nsk.rt.ru
176.51.115.172	PTR	b-internet.176.51.115.172.nsk.rt.ru
176.51.116.217	PTR	b-internet.176.51.116.217.nsk.rt.ru
176.51.116.249	PTR	b-internet.176.51.116.249.nsk.rt.ru
176.51.117.36	PTR	b-internet.176.51.117.36.nsk.rt.ru
176.51.119.193	PTR	b-internet.176.51.119.193.nsk.rt.ru
176.51.120.140	PTR	b-internet.176.51.120.140.nsk.rt.ru
176.51.122.226	PTR	b-internet.176.51.122.226.nsk.rt.ru
176.51.123.5	PTR	b-internet.176.51.123.5.nsk.rt.ru
176.51.124.121	PTR	b-internet.176.51.124.121.nsk.rt.ru
176.51.124.235	PTR	b-internet.176.51.124.235.nsk.rt.ru
176.51.125.228	PTR	b-internet.176.51.125.228.nsk.rt.ru
176.51.126.69	PTR	b-internet.176.51.126.69.nsk.rt.ru
176.51.126.169	PTR	b-internet.176.51.126.169.nsk.rt.ru
176.51.127.85	PTR	b-internet.176.51.127.85.nsk.rt.ru
176.51.127.241	PTR	b-internet.176.51.127.241.nsk.rt.ru