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

PTR

smtp30.tsinghua.edu.cn

A record for

`smtp30.tsinghua.edu.cn`
	A	101.6.4.54
	A	166.111.204.54

IP numbers used in conjunction

100%	101.6.4.54

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Beijing, Beijing, 🇨🇳 China

^{🇨🇳 ERX-CERNET-BKB}

166.111.204.54 Beijing, Beijing, 🇨🇳 China Courtesy of