PTR

ptr52.20.idc-isp.com

A record for

`bistatic-mooc1.aichaoxing.com`
	A	2400:5280:f803:403:140:210:88:56
	A	2400:5280:f803:403:140:210:88:67
	A	45.113.20.50
	A	45.113.20.52
`passport2.aichaoxing.com`
	A	45.113.20.10
	A	45.113.20.16
	A	45.113.20.18
	A	45.113.20.48
	A	45.113.20.50
	A	45.113.20.52
	A	45.113.20.54
	A	45.113.20.56
	A	45.113.20.58
	A	45.113.20.60
`xueyin.aichaoxing.com`
	A	2400:5280:f803:403:140:210:88:56
	A	2400:5280:f803:403:140:210:88:67
	A	45.113.20.50
	A	45.113.20.52

Beijing, Beijing, 🇨🇳 China

^{🇨🇳 CHINATELECOM-Hebei-Langfang-IDC}