LAYER3 INTEL
Get started
Sign in
Data as of Nov 10, 2026

221.239.29.0/24

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
221.239.0.0/18
since May 2005
AS17638Residential17
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
└ 221.239.29.0/2732TIANJIN-DONGSENGZHIYE-LTDDONGSENGZHIYE-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.32/298TIANJIN-BOSITENG-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.239.29.40/298TIANJIN-REDIANGONGSI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.239.29.48/298TIANJIN-GUODIANJINNENG-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.64/298TIANJIN-GAITERUISI-LTDGAITERUISI-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.72/298TIANJIN-XINRUISHISHANG-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.80/298TIANJIN-WAISHANGTOUZI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.239.29.88/298TIANJIN-BINGMEIREN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.96/298TIANJIN-KAITUO-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.104/298TIANJIN-LIANGSHICHUBEI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.239.29.112/298TIANJIN-HUAZHIGANGCAI-LTDHUAZHIGANGCAI-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.120/298TIANJIN-FEILONGXIANGJIAO-LTDFEILONGXIANGJIAO-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.128/298TIANJIN-ZHENYAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.144/2816TIANJIN-XIANGYU-LTDXIANGYU-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.160/304TIANJIN-XINQIANWEIWANGBA-NETBARunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.239.29.176/298TIANJIN-BIHAILANTIAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.208/298TIANJIN-YOUTONG-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.216/298TIANJIN-LAOBAIXINGDAYAOFANG-LTDLAOBAIXINGDAYAOFANG-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.224/298TIANJIN-BOSITENG-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.239.29.232/298TIANJIN-SANYUAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.240/304TIANJIN-QIANXUN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.244/304TIANJIN-PINGANBAOXIAN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.29.248/298TIANJIN-WANYINGJIJIN-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