Robtex

Up: 223.202.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 223.202.220.0/23
Down right: 223.202.222.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
223.202.221.192	A	i-thread.oppo.cn
223.202.221.192	A	i-api.oppo.cn
223.202.221.197	A	predragate.dc.oppomobile.com
223.202.221.199	A	preconf.dc.oppomobile.com
223.202.221.200	A	share-cn01a.ocloud.heytapmobi.com
223.202.221.200	A	httpdns.push.heytapmobi.com
223.202.221.200	A	u.bot.heytapmobi.com