Robtex

Up: 27.50.30.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 27.50.31.0/25
Down right: 27.50.31.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.50.31.0	PTR	ip-27-50-31-0.cepat.net.id
27.50.31.2	PTR	ip-27-50-31-2.cepat.net.id
27.50.31.3	PTR	ip-27-50-31-3.cepat.net.id
27.50.31.3	A	nurulqurannq.com
27.50.31.3	A	tidorekota.org
27.50.31.4	PTR	ip-27-50-31-4.cepat.net.id
27.50.31.4	A	newtonindonesia.co.id
27.50.31.7	PTR	ip-27-50-31-7.cepat.net.id
27.50.31.7	A	mail.newtonindonesia.co.id
27.50.31.56	PTR	ip-27-50-31-56.cepat.net.id
27.50.31.77	PTR	ip-27-50-31-77.cepat.net.id
27.50.31.77	A	ns2.pnm.co.id
27.50.31.78	PTR	ip-27-50-31-78.cepat.net.id
27.50.31.94	PTR	ip-27-50-31-94.cepat.net.id
27.50.31.134	PTR	ip-27-50-31-134.cepat.net.id
27.50.31.238	PTR	ip-27-50-31-238.cepat.net.id
27.50.31.238	A	mail.lpse.sumselprov.go.id
27.50.31.238	A	lpse.sumselprov.go.id
27.50.31.255	PTR	ip-27-50-31-255.cepat.net.id