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

221.238.176.0/24

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
└ 221.238.176.0/2732TIANJIN-LANZUANDASHA-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.176.32/2816TIANJIN-GUOZHANZHONGXIN-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.238.176.48/2816TIANJIN-ZHONGTIESHIBAJU-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.64/298TIANJIN-TIANWAITAIN-NETBARunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.72/298TIANJIN-NONGFAHANG-BANKunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.80/298TIANJIN-ZHONGXINGTAIFU-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.88/298TIANJIN-KETIANGUOJIMAOYI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.96/298TIANJIN-GUOKAIZHENGQUAN-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.104/298TIANJIN-JINRONGZICHANJIAOYISUO-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.112/2816TIANJIN-ZHESHANGQIHUO-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.128/2816TIANJIN-JINBAOCHUANMEI-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.144/298TIANJIN-HERONGQIHUO-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.152/298TIANJIN-LEIAOGUOJIWULIU-LTDunknownASSIGNED NON-PORTABLE—baijian.tj@chinatelecom.cn
└ 221.238.176.160/2732TIANJIN-BOHAI-BANKunknownASSIGNED 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