219.221.240.1 — AS4538 ERX-CERNET-BKB

A record for

`ztu.edu.cn`
	A	2001:250:2816:3::2
	A	219.221.240.1
`ns.ztu.edu.cn`
	A	2001:250:2816:4::2
	A	219.221.240.1

Previously A record for

dns.ztu.edu.cn

IP numbers used in conjunction

50%	2001:250:2816:3::2
50%	2001:250:2816:4::2

🛡️Is this IP blacklisted?Check against 50+ spam databases→🌐219.221.240.0/24256 IPs · AS4538 ERX-CERNET-BKB→🔧AS4538ERX-CERNET-BKB autonomous system→^{🇨🇳 ERX-CERNET-BKB219.221.240.0/24 CMI (Customer Route)}