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Data as of Nov 10, 2026

221.238.220.0/24

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
221.238.192.0/18
since May 2005
AS17638Residential205
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
└ 221.238.220.32/298TIANJIN-KUAILEYIZHAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.40/298TIANJIN-JINRI-LTDJINRI-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.48/298TIANJIN-HANGUDONGHAITANSU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.56/298TIANJIN-ZHONGLIANGBINHAI-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.64/298TIANJIN-KAITUO-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.72/298TIANJIN-DONGHAITANSU-LTDDONGHAITANSU-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.80/298TIANJIN-SHENYUANGUANGGAOCEHUA-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.88/298TIANJIN-JIEFANGJUNLAONIANTUIXIUBAN-LTDJIEFANGJUNLAONIANTUIXIUBAN-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.96/298TIANJIN-TIANJINDIANXIN-LTDTIANJINDIANXIN-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.104/298TIANJIN-HEDONGGUOMEILIUWEILU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.112/2816TIANJIN-JINFENGWEIYE-NETWORKunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.128/298TIANJIN-XINHAIYUANWANGBA-NETBARunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.220.136/298TIANJIN-MEIDIZHILENG-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.220.152/298TIANJIN-SAIYING-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.160/298TIANJIN-PENGYINGZHISHENG-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.220.168/298TIANJIN-FEIXIANG-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.176/298TIANJIN-QINGSHEN-NETBARunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.220.184/298TIANJIN-GUHEQICHEBUJIANSHEJIKAIFA-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.220.192/2732TIANJIN-WANSHUNDASHA-BUIDINGunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.224/2816TIANJIN-JINFENGWEIYE-NETWORKunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.240/298TIANJIN-BEIFANGWUYANGYUNSHU-LTDBEIFANGWUYANGYUNSHU-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.220.248/298TIANJIN-JINGGAOSHANTIAN-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