Robtex

Up: 198.11.138.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 198.11.138.0/25
Down right: 198.11.138.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.11.138.231	A	ns1.aliedge.com
198.11.138.232	A	ns2.aliedge.com
198.11.138.241	A	ns1.tmall.hk
198.11.138.241	A	nsp.alibabaonline.com
198.11.138.242	A	ns2.tmall.hk
198.11.138.242	A	nsp2.alibabaonline.com
198.11.138.243	A	nshz.alibabaonline.com
198.11.138.244	A	ns4.tmall.hk
198.11.138.244	A	ns8.alibabaonline.com
198.11.138.244	A	ns3.tmall.hk
198.11.138.245	A	ns4.taobao.com
198.11.138.248	A	ns5.aliyun.com
198.11.138.249	A	ns4.taobao.com
198.11.138.252	A	ns2.alibabadns.com
198.11.138.253	A	dns3.youku.com
198.11.138.254	A	gdsns1.aliexpress.com
198.11.138.254	A	gdsns1.tmall.com
198.11.138.254	A	gdsns1.alisoft.com