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Data as of Nov 10, 2026

221.239.21.0/24

1 residential-proxy exit · 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

Residential-proxy exits

Proxy exits
1
0.39% of its addresses · 30 days
Always-on exits
1
100% of its exits
Providers
20
selling exits here
Oct 11, 2026 – Nov 8, 2026

Exits seen per day

528 observations

Proxy providers listing exits

  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • EnigmaProxy
  • FlashProxy
  • GonzoProxy
  • IPOasis
  • Infatica
  • LightningProxies
  • MangoProxy
  • NodeMaven
  • NovaProxy
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • Proxyma
  • Shifter
  • VibeProxies
  • VitalProxy

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
└ 221.239.21.24/298TIANJIN-DONGYINGHAIXIANCHENG-LTDDONGYINGHAIXIANCHENG-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.32/2816TIANJIN-TIANJINHAIGUAN-LTDTIANJINHAIGUAN-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.56/298TIANJIN-JUXINSHANGMAO-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.64/298TIANJIN-XINHAOQICHE-LTDXINHAOQICHE-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.72/298TIANJIN-DUIWAIFUWU-LTDDUIWAIFUWU-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.80/2816TIANJIN-LEGOUDISHANG-MARKETunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.96/298TIANJIN-KAILILENGQISHEBEI-LTDKAILILENGQISHEBEI-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.104/298TIANJIN-XUNYANGJIAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.112/2816TIANJIN-DILIYA-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.128/2816TIANJIN-DATONGHUIGUAN-LTDDATONGHUIGUAN-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.144/298TIANJIN-XINRUIKEMAO-LTDXINRUIKEMAO-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.152/298TIANJIN-HUONIWEIER-LTDHUONIWEIER-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.160/298TIANJIN-YAHU-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.168/298TIANJIN-YIDIANTONG-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.176/298TIANJIN-DIANLIJIANSHE-LTDDIANLIJIANSHE-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.184/298TIANJIN-XINHAOQICHE-LTDunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.192/304TIANJIN-KAIXIN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.196/304TIANJIN-YIDIAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.200/298TIANJIN-QIMAOGANGTIE-LTDQIMAOGANGTIE-LTD.ASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.208/298TIANJIN-TIANTANG-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.216/298TIANJIN-LANTIAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.224/304TIANJIN-HEBEIFANDIAN-HOTELunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.228/304TIANJIN-MENGYUAN-NETBARunknownASSIGNED NON-PORTABLE—anti-spam@chinatelecom.cn
via CHINANET-TJ
└ 221.239.21.232/298TIANJIN-XINLINGYU-NETBARunknownASSIGNED 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