Robtex

Up: 27.72.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 27.72.64.0/19
Down right: 27.72.96.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
27.72.64.235	PTR	localhost
27.72.65.33	PTR	localhost
27.72.68.135	PTR	localhost
27.72.68.140	A	ttcvn.net
27.72.69.210	A	bttytb.hopto.org
27.72.72.34	PTR	localhost
27.72.72.98	PTR	localhost
27.72.72.98	A	mail.sannhiquangninh.vn
27.72.72.98	A	sannhiquangninh.vn
27.72.72.224	PTR	dynamic-adsl.viettel.vn
27.72.73.9	A	noscosmetics.com
27.72.73.166	PTR	localhost
27.72.73.199	PTR	localhost
27.72.73.199	A	cdythaiphong.edu.vn
27.72.73.242	PTR	mail.vtlhp.vn
27.72.73.242	A	mail.cayxanhhaihung.com
27.72.75.227	PTR	dynamic-ip-adsl.viettel.vn
27.72.76.2	A	qltacphamvhntpt.com
27.72.79.198	A	thptphandinhgiot.edu.vn
27.72.79.198	A	www.thpt-tuangiao-dienbien.edu.vn
27.72.79.198	A	thpt-tuangiao-dienbien.edu.vn
27.72.79.229	PTR	localhost
27.72.80.9	PTR	localhost
27.72.80.102	PTR	dynamic-ip-adsl.viettel.vn
27.72.80.102	A	chuyenkhamnamkhoabacninh.com
27.72.80.237	A	srolegends.com
27.72.81.168	PTR	dynamic-ip-adsl.viettel.vn
27.72.84.87	PTR	dynamic-ip-adsl.viettel.vn
27.72.84.87	A	bvcubadonghoi.vn
27.72.84.138	A	smtp.gelowitz.org
27.72.86.168	PTR	ftts.co
27.72.86.168	PTR	mail.fortresstooks.com.vn
27.72.88.50	A	vimcitygialam.com
27.72.88.54	A	hrm.eurowindow.biz
27.72.88.84	PTR	localhost
27.72.88.84	A	dinhdoship.com
27.72.88.84	A	metjc.com
27.72.88.105	PTR	localhost
27.72.88.116	PTR	localhost
27.72.88.116	A	tanthangcement.com
27.72.88.155	PTR	localhost
27.72.88.155	A	pvr.vn
27.72.88.155	A	svpgate.com
27.72.88.167	PTR	dynamic-ip-adsl.viettel.vn
27.72.88.220	A	viwa.gov.vn
27.72.88.241	A	daugiash.com
27.72.90.118	PTR	localhost
27.72.90.118	A	foutecvn.com
27.72.95.134	PTR	dynamic-ip-adsl.viettel.vn
27.72.96.31	A	kienthuctieuduong.vn
27.72.96.190	PTR	dynamic-ip-adsl.viettel.vn
27.72.96.190	A	www.erpvietnam.vn
27.72.96.190	A	www.ehoadon.com.vn
27.72.96.215	A	sonnguyenthai.com
27.72.97.106	A	tingsystem.com
27.72.97.106	A	tingsystem.vn
27.72.97.106	A	www.tingsystem.vn
27.72.97.159	PTR	dynamic-adsl.viettel.vn
27.72.97.159	A	computervision.vn
27.72.97.159	A	assd.tk
27.72.100.108	A	ktht.nuce.edu.vn
27.72.100.111	PTR	localhost
27.72.100.111	A	www.galaxyviet.vn
27.72.100.111	A	galaxyviet.vn
27.72.100.158	A	www.ksystem.vn
27.72.100.168	PTR	localhost
27.72.102.13	PTR	dynamic-ip-adsl.viettel.vn
27.72.102.13	A	www.khoahoc365.com
27.72.102.75	A	cdnnv.com
27.72.102.208	A	thegoldenpalm.vn
27.72.103.37	PTR	dynamic-adsl.viettel.vn
27.72.104.11	A	evngenco1.vn
27.72.104.11	A	mail.evngenco1.vn
27.72.104.68	A	coquynhielts.edu.vn
27.72.104.68	A	www.coquynhielts.edu.vn
27.72.104.95	A	thangmayhaiphong.com
27.72.104.104	A	tinhnhunu.com
27.72.104.142	A	dienlucvinhhung.com.vn
27.72.105.10	PTR	localhost
27.72.105.10	A	www.ntq.solutions
27.72.105.10	A	ntq.solutions
27.72.105.111	A	cloud.itlvn.com
27.72.105.154	A	vanphongtructuyen.com
27.72.105.169	A	congnongtech.com
27.72.105.189	A	www.hadong.gov.vn
27.72.106.2	PTR	dynamic-ip-adsl.viettel.vn
27.72.112.110	PTR	localhost
27.72.113.68	A	thucsontamgioi2.com
27.72.116.19	A+PTR	mail.tasaceramic.vn
27.72.116.19	A	www.tasaceramic.com
27.72.116.19	A	tasaceramic.vn
27.72.117.133	PTR	dynamic-adsl.viettel.vn
27.72.120.156	PTR	dynamic-ip-adsl.viettel.vn
27.72.120.234	A	flacohostel.com
27.72.122.111	A	tanson.info
27.72.122.111	A	walakv.com
27.72.123.133	PTR	localhost
27.72.124.137	A	www.capnuochaiphong.com.vn
27.72.124.137	A	capnuochaiphong.com.vn
27.72.126.16	PTR	dynamic-adsl.viettel.vn
27.72.126.16	A	laptop-tn.com
27.72.126.16	A	camera-tn.com
27.72.127.172	PTR	localhost
27.72.127.172	A	haiduongdost.gov.vn