Robtex

Up: 27.65.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 27.65.128.0/18
Down right: 27.65.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.65.129.61	PTR	localhost
27.65.161.13	PTR	localhost
27.65.164.45	PTR	localhost
27.65.165.41	PTR	localhost
27.65.165.45	PTR	localhost
27.65.165.173	PTR	localhost
27.65.192.214	PTR	localhost
27.65.192.214	A	erp.hoasenholdings.vn
27.65.194.38	PTR	localhost
27.65.194.38	A	elearning.vlute.edu.vn
27.65.194.38	A	test.vlute.edu.vn
27.65.196.192	A	smtp.saigonco-op.vn
27.65.196.192	A	mail.coopmart.vn
27.65.196.192	A	smtp.coopmart.vn
27.65.196.193	A	smtp.saigonco-op.vn
27.65.196.193	A	smtp.coopmart.vn
27.65.196.193	A	smtp.saigonco-op.com.vn
27.65.196.200	A	smtp.saigonco-op.vn
27.65.196.200	A	smtp.coopmart.vn
27.65.196.200	A	smtp.saigonco-op.com.vn
27.65.196.201	A	smtp.saigonco-op.vn
27.65.196.201	A	mail.coopmart.vn
27.65.196.201	A	smtp.coopmart.vn
27.65.197.3	PTR	localhost
27.65.197.3	A	ns3.yuanta.com.vn
27.65.197.3	A	ns3.ysfuture.vn
27.65.197.11	A	mapi.yuanta.com.vn
27.65.197.12	PTR	localhost
27.65.197.12	A	yswinner.yuanta.com.vn
27.65.197.14	PTR	localhost
27.65.198.2	A	mb.vietbank.com.vn
27.65.198.184	A+PTR	mailpos.ptsc.com.vn
27.65.198.185	A+PTR	mail.ptsc.com.vn
27.65.201.187	A	mail.tyxuan.com.vn
27.65.237.150	PTR	localhost
27.65.237.150	A	nguoixedich.com
27.65.248.70	PTR	localhost
27.65.248.176	PTR	localhost
27.65.248.176	A	rabotavnebe.net
27.65.253.97	PTR	localhost