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Data as of Nov 10, 2026

221.238.140.0/24

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
└ 221.238.140.32/2816TIANJIN-XINTAOYUAN-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.48/2816TIANJIN-XIAOFANGZONGDUI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.64/2664TIANJIN-GUOHUADASHA-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.140.128/298TIANJIN-HEILIUCHENGDAORUJIAYIJUNJIUDIAN-HOTELunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.140.136/298TIANJIN-HONGSHUHUAYUAN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.140.144/298TIANJIN-HEXIHONGSHUHUAYUAN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.140.152/298TIANJIN-BEIJINGZHONGSOUWANGLUO-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.160/2816TIANJIN-DATONGHANGWULIU-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.160/298TIANJIN-GUOMEIDIANQIGUOHUADASHANANLOUDIAN-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
via TIANJIN-DATONGHANGWULIU-LTD
└ 221.238.140.168/304TIANJIN-GUOMEIDIANQITIBEI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
via TIANJIN-DATONGHANGWULIU-LTD
└ 221.238.140.172/304TIANJIN-GUOMEIDIANQIHEXI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
via TIANJIN-DATONGHANGWULIU-LTD
└ 221.238.140.176/304TIANJIN-GUOMEIDIANQIXINCHENG-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.140.184/298TIANJIN-HEXITIANJINSHIWUFENGUANGGUANCHANG-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.140.192/298TIANJIN-HEPINGZHONGCHAIPAIMAI-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.140.200/298TIANJIN-SHENZHENFAZHAN-BANKunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.208/298TIANJIN-TIANJIN-BANKunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.216/298TIANJIN-JIAMAOZHONGHUAN-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.224/298TIANJIN-ZHONGGUOGUOLV-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.240/298TIANJIN-SISHIER-SCHOOLunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.140.248/298TIANJIN-DAHANSHIJI-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