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Data as of Nov 10, 2026

221.238.13.0/24

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
221.238.0.0/18
since May 2005
AS17638Residential61
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
└ 221.238.13.0/298TIANJIN-SANBAOLUHEWULIU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.12/304TIANJIN-BAOLIBAOWANGBA-NETBARunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.13.16/304TIANJIN-SHIJIWEIBO-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.24/298TIANJIN-AERBEISIWEULIU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.32/298TIANJIN-HEHEGUOJIHUOYUN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.40/298TIANJIN-JINMEIDASHA-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.48/298TIANJIN-JINYADIANZI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.13.56/298TIANJIN-XIJIEXINGXINGGUOJIYINGCHENG-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.13.64/298TIANJIN-JIANZHUSHEJIYUAN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.72/298TIANJIN-KELANDEQICHE-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.80/2816TIANJIN-TAIDAYOUXIANDIANSHIWANGLUO-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.96/298TIANJIN-DILIUJIJIEWANGLUOJISHU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.104/298TIANJIN-JIANZHUGONGCHENG-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.112/298TIANJIN-FULUOLUN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.120/298TIANJIN-TAIDABIAOZHUNSHIPIN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.128/2732TIANJIN-GANGTONGXINDAOHANG-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.160/2732TIANJIN-TAIDAZUQIUCHANG-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.192/298TIANJIN-SHENGGUANGZHIYE-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.200/304TIANJIN-JINSHANGTOUZI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.13.204/304TIANJIN-QUANXICHANGSHANGHUO-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.208/298TIANJIN-HAIGEOUYIAIMU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.216/298TIANJIN-BAOHAIJIARIJIUDIAN-HOTELunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.224/298TIANJIN-ANXUNDAKEJI-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.232/298TIANJIN-ZHONGFANGSHIHUOTOUZI-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.240/298TIANJIN-YUANTAIQICHEXIAOSHOU-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.13.248/298TIANJIN-SHANGPINJIAOYISHICHANG-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ

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