Robtex

Up: 81.199.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 81.199.52.0/23
Down right: 81.199.54.0/23

IP	Type	Hostname
81.199.52.91	PTR	81.199.52.91.satcom-systems.net
81.199.53.76	PTR	81.199.53.76.satcom-systems.net
81.199.53.114	PTR	81.199.53.114.satcom-systems.net
81.199.54.114	PTR	webstar.skyweb.co.ke
81.199.54.115	PTR	nairobi.skyweb.co.ke
81.199.54.133	PTR	mr-abh.abh-angola.com
81.199.54.133	A	mail.escendo-ventures.com
81.199.54.133	A	mail.telesite-angola.com
81.199.55.51	PTR	81.199.55.51.satcom-systems.net
81.199.55.145	PTR	81.199.55.145.satcom-systems.net
81.199.55.147	PTR	mail.nti.gov.ng