Robtex

Up: 202.81.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 202.81.240.0/23
Down right: 202.81.242.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
202.81.241.1	A+PTR	241-001.netfront.net
202.81.241.12	A+PTR	241-012.netfront.net
202.81.241.39	A+PTR	241-039.netfront.net
202.81.241.43	A+PTR	241-043.netfront.net
202.81.241.50	A+PTR	241-050.netfront.net
202.81.241.61	A+PTR	241-061.netfront.net
202.81.241.62	A+PTR	241-062.netfront.net
202.81.241.126	A+PTR	241-126.netfront.net
202.81.241.127	A+PTR	241-127.netfront.net
202.81.241.138	A+PTR	241-138.netfront.net
202.81.241.142	A+PTR	241-142.netfront.net
202.81.241.154	A+PTR	241-154.netfront.net
202.81.241.161	A+PTR	241-161.netfront.net
202.81.241.181	A	241-181.netfront.net
202.81.241.229	A+PTR	241-229.netfront.net
202.81.241.234	A+PTR	241-234.netfront.net
202.81.241.240	A+PTR	241-240.netfront.net
202.81.242.14	PTR	242-014.netcloud.com.hk
202.81.242.14	A	resourcedocker.com
202.81.242.15	PTR	242-015.netcloud.com.hk
202.81.242.15	A	hkszone.com
202.81.242.17	PTR	242-017.netcloud.com.hk
202.81.242.17	A	word.2.fuckword.club
202.81.242.29	PTR	242-029.netcloud.com.hk
202.81.242.29	A	qqqbc.com
202.81.242.29	A	wanye21.com
202.81.242.32	A+PTR	242-032.netfront.net
202.81.242.35	PTR	242-035.netcloud.com.hk
202.81.242.35	A	acgso.com
202.81.242.36	A	242-036.netfront.net
202.81.242.42	PTR	242-042.netcloud.com.hk
202.81.242.42	A	xdf008.com
202.81.242.48	PTR	242-048.netcloud.com.hk
202.81.242.48	A	cashee.ddk.cname-url.com
202.81.242.51	PTR	242-051.netcloud.com.hk
202.81.242.53	PTR	242-053.netcloud.com.hk
202.81.242.53	A	yesssr.com
202.81.242.53	A	www.yesssr.com
202.81.242.58	PTR	242-058.netcloud.com.hk
202.81.242.58	A	www.exacg.com
202.81.242.68	PTR	242-068.netcloud.com.hk
202.81.242.68	A	zhanshiren.cn
202.81.242.68	A	wsting.com
202.81.242.73	PTR	242-073.netcloud.com.hk
202.81.242.73	A	kkkuuu.cn
202.81.242.80	PTR	242-080.netcloud.com.hk
202.81.242.85	PTR	242-085.netcloud.com.hk
202.81.242.85	A	zhuochat.com
202.81.242.104	PTR	242-104.netcloud.com.hk
202.81.242.104	A	gd16688.com
202.81.242.104	A	kut3jf.huayicdn.com
202.81.242.109	PTR	242-109.netcloud.com.hk
202.81.242.109	A	pinyigou.com
202.81.242.109	A	www.zjkjb.com
202.81.242.120	PTR	242-120.netcloud.com.hk
202.81.242.120	A	www.ohssr.com
202.81.242.120	A	ohssr.com
202.81.242.121	PTR	242-121.netcloud.com.hk
202.81.242.121	A	hk1.acgso.com
202.81.242.122	PTR	242-122.netcloud.com.hk
202.81.242.122	A	242-122.netfront.net
202.81.242.143	PTR	242-143.netcloud.com.hk
202.81.242.143	A	hissr.ooo
202.81.242.145	PTR	242-145.netcloud.com.hk
202.81.242.145	A	x615772376.ddk.cname-url.com
202.81.242.145	A	x184330276.ddk.cname-url.com
202.81.242.152	PTR	242-152.netcloud.com.hk
202.81.242.152	A	inbound.smoveteam.com
202.81.242.152	A	www.smoveteam.com
202.81.242.170	PTR	242-170.netcloud.com.hk
202.81.242.170	A	ocrzk.com
202.81.242.173	PTR	242-173.netcloud.com.hk
202.81.242.173	A	hk173.mfjx-vip.xyz
202.81.242.174	PTR	242-174.netcloud.com.hk
202.81.242.174	A	yutv.co
202.81.242.183	PTR	242-183.netcloud.com.hk
202.81.242.183	A	tseminar-grp.com
202.81.242.190	PTR	242-190.netcloud.com.hk
202.81.242.190	A	www.mobileui.com.cn
202.81.242.190	A	mobileui.com.cn
202.81.242.216	PTR	242-216.netcloud.com.hk
202.81.242.222	PTR	242-222.netcloud.com.hk
202.81.242.222	A	242-222.netfront.net
202.81.242.226	A	242-226.netfront.net
202.81.242.250	PTR	242-250.netcloud.com.hk
202.81.242.250	A	242-085.netcloud.com.hk
202.81.242.250	A	242-007.netcloud.com.hk
202.81.243.10	A	243-010.netfront.net
202.81.243.53	PTR	243-053.metroe.netfront.net
202.81.243.69	PTR	243-069.metroe.netfront.net
202.81.243.69	A	ldcstudy.net
202.81.243.69	A	hk.ldcstudy.com
202.81.243.74	PTR	243-074.metroe.netfront.net
202.81.243.74	A	ptpf.net
202.81.243.116	PTR	243-116.metroe.netfront.net
202.81.243.158	PTR	243-158.metroe.netfront.net
202.81.243.184	PTR	243-184.metroe.netfront.net
202.81.243.184	A	243-184.netfront.net
202.81.243.234	A	243-234.netfront.net
202.81.243.241	PTR	243-241.metroe.netfront.net
202.81.243.241	A	243-241.netfront.net