CF1759767179898-tsm20251005211530

IPLIST.NET - tech.21cn.com

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tech.21cn.com checked at 2025-10-06T16:12:59.872Z 676ms 46/46/46 100% R:13

tech.21cn.com

MXmta-ent.21cn.com
A183.56.203.132🇨🇳 CHINANET-Guangzhou-Southbase-IDC
A183.56.205.179🇨🇳 CHINANET-Guangzhou-Southbase-IDC

21cn.com

MXmta.21cn.com
NSvip3.alidns.com
NSvip4.alidns.com
A240e:980:8100::72d9:250d 🇨🇳 China Telecom
A114.217.37.13🇨🇳 China Telecom
rank #7722 globally
rank #3959 in the tld

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AI analysis

tech.21cn.com is the parent of sec.tech.21cn.com, oss.tech.21cn.com, dapm.tech.21cn.com, msg.tech.21cn.com, exam.tech.21cn.com and several other host names.

tech.21cn.com is served by a single mail server, mta-ent.21cn.com.

tech.21cn.com uses the same mail server setup as other domains such as ppp72.shantou.gd.cn, gzb-dns2-1.guangzhou.gd.cn, et.21cn.com, mailcnd.21cn.com and maiilcdn.21cn.com.

tech.21cn.com shares some mail servers with other domains, including ccdmmy.com, daolen.com, shicohmotor.cn, wjcbchina.com and vanincon.com.

These mail servers are commonly used with mailcdn.21cn.com, mxn.mxhichina.com and mxw.mxhichina.com.

Hostname mta-ent.21cn.com resolves to two IPs: 183.56.203.132 and 183.56.205.179.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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rGtTSGW CF johedugfp 2025-10-06