Robtex

Up: 87.117.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 87.117.128.0/22
Down right: 87.117.132.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.117.128.0	PTR	0.128.117.87.in-addr.arpa
87.117.128.170	A	relay1.garmed.com
87.117.128.255	PTR	87.117.128.255
87.117.129.0	PTR	87.117.129.0
87.117.129.2	A	ssg-01.stelcom.ru
87.117.129.91	PTR	host-87-117-129-91.customer.stelcom.ru
87.117.129.122	A	ns.nomenar.ru
87.117.129.123	PTR	host-87-117-129-123.customer.stelcom.ru
87.117.129.123	A	ffcorp.ru
87.117.129.123	A	mx.zolla.com
87.117.129.235	PTR	host-87-117-129-235.customer.stelcom.ru
87.117.130.0	PTR	0.130.117.87.in-addr.arpa
87.117.130.131	A+PTR	lo0.msk1-cr0.stelcom.ru
87.117.130.131	A	msk1-cr0.stelcom.ru
87.117.130.154	PTR	87.117.130.154
87.117.131.0	PTR	0.131.117.87.in-addr.arpa
87.117.131.28	PTR	87.117.131.28
87.117.131.30	PTR	87.117.131.30
87.117.131.166	A	derben-sw1-floor1.stelcom.ru
87.117.131.172	A	derben-sw2-floor4.stelcom.ru
87.117.131.191	PTR	87.117.131.191
87.117.132.0	PTR	0.132.117.87.in-addr.arpa
87.117.133.0	PTR	0.133.117.87.in-addr.arpa
87.117.134.0	PTR	0.134.117.87.in-addr.arpa
87.117.134.148	A	mx.miaton.ru
87.117.134.148	A	mail.miaton.ru
87.117.134.151	A	mail.tehinzhstroy.com
87.117.134.160	PTR	160.134.117.87.in-addr.arpa
87.117.134.160	A	mail.almos-agroliga.ru
87.117.134.162	A	smtp.rucontoso.com
87.117.134.234	A+PTR	mail.economiks.ru
87.117.134.234	A	mail.econbank.ru
87.117.134.236	PTR	87.117.134.236
87.117.134.236	A	mail-mx2.econbank.ru
87.117.134.250	A+PTR	mivel-vgw.stelcom.ru
87.117.134.250	A	ns.barracu-da.ru
87.117.135.10	A	smtp.ginet.ru
87.117.135.114	PTR	mail.osi.ru
87.117.135.130	A	mail1.erct.ru
87.117.135.139	A	insysltd.org
87.117.135.140	A+PTR	mail.insysltd.ru
87.117.135.140	A	top-60.ru
87.117.135.162	PTR	mail.rguts.ru.135.117.87.in-addr.arpa
87.117.135.162	A	mail.rguts.ru
87.117.135.222	A	ns2.spapay.ru