Robtex

Up: 202.134.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 202.134.16.0/25
Down right: 202.134.16.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
202.134.16.75	A	mail75.ngt.vn
202.134.16.76	PTR	mail.ngt.vn
202.134.16.77	A	mail77.ngt.vn
202.134.16.82	PTR	static.cmcti.vn
202.134.16.82	A	host82.ngt.vn
202.134.16.86	PTR	hosting2.ngt.vn
202.134.16.90	PTR	sip.ngt.vn
202.134.16.91	PTR	host91.ngt.vn
202.134.16.93	A+PTR	host93.ngt.vn
202.134.16.95	PTR	static.cmcti.vn
202.134.16.95	A	host95.ngt.vn
202.134.16.95	A	hnxanh.com
202.134.16.96	PTR	static.cmcti.vn
202.134.16.97	A+PTR	host97.ngt.vn
202.134.16.98	PTR	host98.ngt.vn
202.134.16.99	A+PTR	host99.ngt.vn
202.134.16.100	PTR	hn-dns.ngt.vn
202.134.16.100	A	dns-hn.ngt.vn
202.134.16.209	PTR	client-gw-hn.ngt.vn