101.6.4.52 — AS4538 ERX-CERNET-BKB

PTR

smtp28.tsinghua.edu.cn

A record for

`smtp28.tsinghua.edu.cn`
	A	101.6.4.52
	A	166.111.204.52

IP numbers used in conjunction

100%	166.111.204.52

🛡️Is this IP blacklisted?Check against 50+ spam databases→🌐101.6.0.0/1733K IPs · AS4538 ERX-CERNET-BKB→🔧AS4538ERX-CERNET-BKB autonomous system→^{🇨🇳 ERX-CERNET-BKB101.6.0.0/17 CMI (Customer Route)}