Robtex

Up: 171.248.0.0/13
Can't show all results, try to descend to a more specific CIDR
Down left: 171.252.0.0/15
Down right: 171.254.0.0/15
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
171.252.28.136	PTR	dynamic-ip-adsl.viettel.vn
171.252.33.54	A	seed.nu.crypto-daio.co.uk
171.252.33.193	PTR	dynamic-ip-adsl.viettel.vn
171.252.33.193	A	ylamfarm.com
171.252.106.91	A	mail.eservx.com
171.252.106.91	A	eservx.com
171.252.118.139	A	iblekorgarderkor.us
171.252.122.3	A	admin.nuhula.com
171.252.157.40	A	minhphuongqnam.dyndns.org
171.252.166.156	A	allapapa.com
171.252.166.156	A	varietyebooks.com
171.252.166.156	A	syntheticbook.com
171.252.188.211	PTR	dynamic-ip-adsl.viettel.vn
171.252.195.98	PTR	dynamic-ip-adsl.viettel.vn
171.252.211.14	A	xn--tkvw35h.com
171.252.224.100	A	khoaitay155a.ddns.net
171.253.7.187	A	sportifconcerner.ooo
171.253.8.202	A	strongylidh.saredianete.com
171.253.16.70	PTR	dynamic-ip-adsl.viettel.vn
171.253.35.223	A	mail.mkool.net
171.253.35.223	A	mkool.net
171.253.50.186	PTR	dynamic-ip-adsl.viettel.vn
171.253.66.200	PTR	dynamic-adsl.viettel.vn
171.253.88.62	PTR	dynamic-adsl.viettel.vn
171.253.99.76	PTR	dynamic-ip-adsl.viettel.vn
171.253.99.76	A	daiquang.ddns.net
171.253.125.61	PTR	dynamic-adsl.viettel.vn
171.253.135.133	A	cuoingohouse.com
171.253.137.9	PTR	dynamic-ip-adsl.viettel.vn
171.253.141.214	PTR	dynamic-ip-adsl.viettel.vn
171.253.177.230	A	oplungiphone7p8p.com
171.254.1.117	A	isqdc.com
171.254.3.85	PTR	dynamic-adsl.viettel.vn
171.254.10.74	PTR	dynamic-ip-adsl.viettel.vn
171.254.10.214	A	mail.thaibinhtpc.com
171.254.10.214	A	thaibinhtpc.com
171.254.11.241	A	sinhvien.hpmu.edu.vn
171.254.28.27	A	test-java.com
171.254.30.129	PTR	dynamic-ip-adsl.viettel.vn
171.254.65.163	PTR	dynamic-ip-adsl.viettel.vn
171.254.76.54	PTR	dynamic-adsl.viettel.vn
171.254.76.54	A	danglh.ddns.net
171.254.131.246	PTR	dynamic-ip-adsl.viettel.vn
171.254.146.218	PTR	dynamic-ip-adsl.viettel.vn
171.254.227.12	PTR	dynamic-ip-adsl.viettel.vn
171.255.64.54	PTR	dynamic-ip-adsl.viettel.vn
171.255.64.74	PTR	dynamic-ip-adsl.viettel.vn
171.255.65.6	PTR	dynamic-ip-adsl.viettel.vn
171.255.71.73	PTR	dynamic-ip-adsl.viettel.vn
171.255.71.89	PTR	dynamic-ip-adsl.viettel.vn
171.255.77.239	PTR	dynamic-ip-adsl.viettel.vn
171.255.78.233	PTR	dynamic-adsl.viettel.vn
171.255.117.252	PTR	dynamic-ip-adsl.viettel.vn
171.255.121.23	PTR	dynamic-ip-adsl.viettel.vn
171.255.122.206	PTR	dynamic-ip-adsl.viettel.vn
171.255.128.155	PTR	dynamic-adsl.viettel.vn
171.255.131.155	PTR	dynamic-ip-adsl.viettel.vn
171.255.145.242	PTR	dynamic-ip-adsl.viettel.vn
171.255.192.4	A	phapluat.netnews.vn
171.255.192.16	PTR	dynamic-ip-adsl.viettel.vn
171.255.192.16	A	qlvb.thainguyen.edu.vn
171.255.192.16	A	edu.vpdt.com.vn
171.255.192.23	PTR	dynamic-ip-adsl.viettel.vn
171.255.196.65	PTR	dynamic-ip-adsl.viettel.vn
171.255.196.65	A	cdn.ereka.vn
171.255.196.69	PTR	dynamic-ip-adsl.viettel.vn
171.255.196.69	A	ns1.ereka.vn
171.255.196.70	PTR	dynamic-ip-adsl.viettel.vn
171.255.196.70	A	ns2.ereka.vn
171.255.196.169	A	itrithuc.vn
171.255.196.177	A	cdn.ereka.vn
171.255.199.140	A	cdn.ereka.vn
171.255.200.12	A	r1.sn-8pxuuxa-i5oll.gvt1.com
171.255.200.12	A	r1.sn-8pxuuxa-i5oll.googlevideo.com
171.255.200.13	A	r2.sn-8pxuuxa-i5oll.gvt1.com
171.255.200.13	A	r2.sn-8pxuuxa-i5oll.googlevideo.com
171.255.204.12	A	r1.sn-8pxuuxa-0pie.gvt1.com
171.255.204.12	A	r1.sn-8pxuuxa-0pie.googlevideo.com
171.255.204.13	PTR	dynamic-ip-adsl.viettel.vn
171.255.204.13	A	r2.sn-8pxuuxa-0pie.googlevideo.com
171.255.204.13	A	r2.sn-8pxuuxa-0pie.gvt1.com
171.255.204.14	PTR	dynamic-ip-adsl.viettel.vn
171.255.221.26	PTR	dynamic-ip-adsl.viettel.vn
171.255.229.237	PTR	dynamic-ip-adsl.viettel.vn