LAYER3 INTEL
Get started
Sign in
Data as of Nov 4, 2026

210.51.22.16/28

No anonymizer space · no proxy exits in 30 days

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

Announcement
210.51.22.0/24
RPKI valid
Announced by
AS9929
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
210.51.20.0/22
since Aug 2021
AS138421HostingChina Unicom IP network
via Shanghai Caohejing IDC of China Netcom
210.51.0.0/16
since May 2005
AS9929Internet provider62China Unicom IP network

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
210.51.0.0/1665,536UNICOM-CNChina Unicom IP networkALLOCATED PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 210.51.20.0 - 210.51.63.25511,264CNC-SH-IDCShanghai Caohejing IDC of China NetcomALLOCATED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CN
└ 210.51.22.16/2816hetengxun-software-Ltdshanghai cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via CNC-SH-IDC

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
Announced by

Covering announcement 210.51.22.0/24

Prefix
210.51.22.0/24
Announced by
AS9929 CHINA UNICOM Industrial Internet Backbone
Type
Internet provider
RPKI
RPKI valid
Netname
CNC-SH-IDC
Registrant
Shanghai Caohejing IDC of China Netcom
RIR
APNIC
Registry

Holder

Organization
China Unicom IP network
Range
210.51.0.0/16
Registration type
ALLOCATED PORTABLE
Reallocated to
Shanghai Caohejing IDC of China Netcom
Reallocated range
210.51.20.0 - 210.51.63.255
Reallocation type
ALLOCATED NON-PORTABLE
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