222.19.137.4 — Shanghai, Shanghai, 🇨🇳 China · AS4538 ERX-CERNET-BKB

PTR

mail.zync.edu.cn

mx.zync.edu.cn

mx.xs.zync.edu.cn

A record for

`mail.zync.edu.cn`
	A	2001:250:2c03::3:10
	A	222.19.137.4
`mx.zync.edu.cn`
	A	2001:250:2c03::3:10
	A	222.19.137.4
`mx.xs.zync.edu.cn`
	A	2001:250:2c03::4:13a
	A	222.19.137.4

IP numbers used in conjunction

66%	2001:250:2c03::3:10
33%	2001:250:2c03::4:13a

🛡️Is this IP blacklisted?Check against 50+ spam databases→🌐222.19.128.0/204K IPs · AS4538 ERX-CERNET-BKB→🔧AS4538ERX-CERNET-BKB autonomous system→

Shanghai, Shanghai, 🇨🇳 China

^{🇨🇳 ERX-CERNET-BKB222.19.128.0/20 CMI (Customer Route)}

222.19.137.4 Shanghai, Shanghai, 🇨🇳 China Courtesy of