Robtex

Up: 203.205.248.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.205.249.0/25
Down right: 203.205.249.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.205.249.31	A	sz-btfs-v2-up.wework.ftn.qq.com
203.205.249.34	A	sz-btfs-v2-down.wework.ftn.qq.com
203.205.249.61	A	sz-btfs-v2-down.wework.ftn.qq.com
203.205.249.69	A	sz-ctfs.ftn.qq.com
203.205.249.73	A	vzbfm.tcdn.qq.com
203.205.249.73	A	70c0cdfd3f7c2d8917dfb3b76803e5ef.v.apcdns.net
203.205.249.73	A	vzb.tcdn.qq.com
203.205.249.78	A	szup.btfs.mail.ftn.qq.com
203.205.249.140	A	grouptalk.c2c.qq.com
203.205.249.141	A	zhenlousound-30073.sz.gfp.tencent-cloud.com
203.205.249.141	A	qunhwfile-30054.sz.gfp.tencent-cloud.com
203.205.249.141	A	operate-30278.sz.gfp.tencent-cloud.com
203.205.249.143	A	ns2.qq.com
203.205.249.148	PTR	out203-205-249-148.mail.qq.com
203.205.249.151	A	en.security.tencent.com
203.205.249.151	A	ti.tencent.com
203.205.249.166	A	sz-btfs-v2-up.wework.ftn.qq.com
203.205.249.169	A	sz-btfs-v2-down.wework.ftn.qq.com
203.205.249.177	A	grouptalk.c2c.qq.com
203.205.249.180	A	sz-btfs-v2-up.wework.ftn.qq.com
203.205.249.204	A	grouptalk.c2c.qq.com
203.205.249.219	A	sz-btfs-v2-down.wework.ftn.qq.com
203.205.249.220	A	sz-btfs-v2-up.wework.ftn.qq.com
203.205.249.226	PTR	out203-205-249-226.mail.qq.com
203.205.249.243	A	grouptalk.c2c.qq.com
203.205.249.249	PTR	out203-205-249-249.mail.qq.com