Robtex

Up: 101.96.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 101.96.72.0/22
Down right: 101.96.76.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
101.96.72.2	PTR	ci96.72-2.netnam.vn
101.96.72.8	PTR	ci96.72-8.netnam.vn
101.96.72.10	PTR	ci96.72-10.netnam.vn
101.96.72.16	PTR	ci96.72-16.netnam.vn
101.96.72.33	PTR	ci96.72-33.netnam.vn
101.96.72.83	PTR	ci96.72-83.netnam.vn
101.96.72.97	PTR	ci96.72-97.netnam.vn
101.96.72.112	PTR	ci96.72-112.netnam.vn
101.96.72.120	PTR	ci96.72-120.netnam.vn
101.96.72.122	PTR	ci96.72-122.netnam.vn
101.96.72.146	PTR	ci96.72-146.netnam.vn
101.96.72.192	PTR	ci96.72-192.netnam.vn
101.96.72.218	PTR	ci96.72-218.netnam.vn
101.96.72.242	PTR	ci96.72-242.netnam.vn
101.96.72.249	PTR	ci96.72-249.netnam.vn
101.96.72.251	PTR	ci96.72-251.netnam.vn
101.96.73.57	PTR	mail.a-1international.com
101.96.73.57	A	a-1international.com
101.96.75.20	PTR	ci96.75-20.netnam.vn
101.96.75.210	PTR	ci96.75-210.netnam.vn
101.96.75.210	A	www.landmark72.vn
101.96.75.210	A	landmark72.vn
101.96.75.212	PTR	ci96.75-212.netnam.vn
101.96.75.212	A	calidashanoi.com
101.96.76.18	PTR	ci96.76-18.netnam.vn
101.96.76.82	PTR	ci96.76-82.netnam.vn
101.96.77.50	PTR	ci96.77-50.netnam.vn
101.96.78.10	A+PTR	mx0.medlacpharma.com