Robtex

Up: 61.5.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.5.76.0/23
Down right: 61.5.78.0/23

IP	Type	Hostname
61.5.76.3	PTR	ppp-slp-c.telkom.net.id
61.5.77.136	PTR	ppp-slp-c.telkom.net.id
61.5.77.173	PTR	ppp-slp-c.telkom.net.id
61.5.77.183	PTR	ppp-slp-c.telkom.net.id
61.5.78.54	PTR	ppp-slp-c.telkom.net.id
61.5.78.57	PTR	ppp-slp-c.telkom.net.id
61.5.78.64	PTR	ppp-slp-c.telkom.net.id
61.5.78.92	PTR	ppp-slp-c.telkom.net.id
61.5.78.101	PTR	ppp-slp-c.telkom.net.id
61.5.78.115	PTR	ppp-slp-c.telkom.net.id
61.5.78.129	PTR	ppp-slp-c.telkom.net.id
61.5.78.156	PTR	ppp-slp-c.telkom.net.id
61.5.78.175	PTR	ppp-slp-c.telkom.net.id
61.5.78.234	PTR	ppp-slp-c.telkom.net.id
61.5.78.246	PTR	ppp-slp-c.telkom.net.id
61.5.79.42	A	tiza-solution.id