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Data as of Nov 8, 2026

210.51.224.0/23

No anonymizer space · no proxy exits in 30 days

CHINA UNICOM Industrial Internet Backbone · space held by China Unicom IP network

Announcement
this exact prefix
RPKI valid
Announced by
AS9929
Type
Business
97% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
210.51.192.0/18
since May 2005
AS9929Internet providerChina Unicom IP network
210.51.0.0/16
since May 2005
AS9929Internet provider62China Unicom IP 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
210.51.0.0/1665,536UNICOM-CNChina Unicom IP networkALLOCATED PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 210.51.224.0/2664SUNZHOU-BROADCAST-CORPsunzhou broadcast company,sunjiang city, guangzhou provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.64/298TAIZHOU-HOSPITALtaizhou hospitalASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.72/304HANGZHOU-CHENGJIAN-CAIGOU-CENTERhangzhou city, chengjian caigou centerASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.76/304ZHEJIANG-XINTAI-LTDzhejiang xintai LtdASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.80/304HAITONG-ZHENGQUANshaoxing cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.84/304ZHEJIANG-ZHENGQUANshaoxing cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.88/304HUAZHE-SHIYE-DEVELOPMENT-CORPhuazhe shiye development corp,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.92/304FINANCE-DEVELOPMENT-COMPANYfinance development company,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.96/298WENZHOU-JINDIAN-NETBARwenzhou jindian netbar,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.104/298ZHONGFANG-ZHIYE-STOCK-LTDzhongfang zhiye stock Ltd,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.112/298JINHUA-LIMING-NETBARjinhua liming netbar,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.120/298JINHUA-GREATWALL-NETBARjinhua greatwall netbar,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.128/2732SHANGYU-WENHUA-GUANGBO-JUhangzhou cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.160/2732shanghai-kaifei-corpshanghai cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.192/298jinhua-greatwall-netbarjinhua city,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.200/298HUIPU-MIDDLE-SCHOOLhuipu middle school of hangzhou city,zhejiang provinceASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.224.224/2732WENZHOU-171wenzhou cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.225.0/25128wenzhou-171-poolwenzhou cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.225.128/25128wenzhou-171-poolwenzhou cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

512 addresses
TypeAddressesShareRanges
Business49697%19
Internet provider163.1%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS9929

CN
Name
CHINA UNICOM Industrial Internet Backbone
Type
Internet provider
Registered
Apr 5, 2000
Domain
chinaunicom.cn
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed