166.111.204.55 — Beijing, Beijing, 🇨🇳 China · AS4538 ERX-CERNET-BKB

PTR

smtp31.tsinghua.edu.cn

A record for

`smtp31.tsinghua.edu.cn`
	A	101.6.4.55
	A	166.111.204.55

IP numbers used in conjunction

100%	101.6.4.55

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Beijing, Beijing, 🇨🇳 China

^{🇨🇳 ERX-CERNET-BKB166.111.204.0/24 CMI (Customer Route)}

166.111.204.55 Beijing, Beijing, 🇨🇳 China Courtesy of