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Data as of Nov 10, 2026

221.238.141.0/24

No anonymizer space · no proxy exits in 30 days

ASN for TIANJIN Provincial Net of CT · space held by Chinanet Tianjin Province Network

Announcement
this exact prefix
RPKI valid
Announced by
AS17638
Type
Residential
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
221.238.128.0/18
since May 2005
AS17638Residential48
1 always on
Chinanet Tianjin Province Network

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
221.238.0.0 - 221.239.127.25598,304CHINANET-TJChinanet Tianjin Province NetworkALLOCATED PORTABLE—anti-spam@chinatelecom.cn
└ 221.238.141.0/298TIANJIN-SHIHUAXIAOSHOU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.141.8/298TIANJIN-AST-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.141.16/298TIANJIN-NONGHANGPEIXUNZHONGXIN-BANKunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.141.28/304TIANJIN-RONGCHUANGZHIDI-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.141.32/304TIANJIN-GUANGYAOTOUZI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.36/304TIANJIN-KAIXIN-NETBARunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.40/298TIANJIN-ZHONGJIAOSIHANGWU-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.48/2816TIANJIN-BOHAIZHENGQUAN-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.64/2732TIANJIN-BOHAIZHENGQUAN-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.96/298TIANJIN-TIANANKEJI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.104/298TIANJIN-JIANGSUJIANGONG-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.112/298TIANJIN-MEIJIANGYINGYETING-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.148/304TIANJIN-TIANDIYUANZHIYE-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.152/304TIANJIN-TIANDIYUANZHIYE-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.160/2816TIANJIN-NONGCUNSHANGYE-BANKunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.176/304TIANJIN-WOAIWOJIA-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.180/304TIANJIN-WOAIWOJIA-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.184/304TIANJIN-WOAIWOJIA-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.188/304TIANJIN-SHIJIZUOBIAOZHUANGSHI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.192/298TIANJIN-YONGCHENGWEIDINGXUANCANYIN-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.200/298TIANJIN-PENGZHIHUA-PERSONunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.208/298TIANJIN-WEIKENKEJI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.216/298TIANJIN-SHIJIZUOBIAOZHUANGSHI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.224/298TIANJIN-HENGYITOUZI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.232/298TIANJIN-NAITELONGKEJI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.141.240/2816TIANJIN-LIANQISHENGSHIDIANZISHANGWU-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS17638

CN
Name
ASN for TIANJIN Provincial Net of CT
Type
Internet provider
Registered
Nov 18, 2002
Domain
cndata.com
Industry
Computer and Information Technology
Spamhaus ASN-DROP
not listed