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Data as of Nov 9, 2026

210.21.51.0/24

2 residential-proxy exits · 30 days

China Unicom Guangzhou network · space held by China Unicom IP network

Announcement
this exact prefix
RPKI valid
Announced by
AS17622
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
2
0.78% of its addresses · 30 days
Providers
25
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

523 observations

Proxy providers listing exits

  • 2Captcha
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CliProxy
  • EnigmaProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • GonzoProxy
  • IPPeak
  • Infatica
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyHat
  • Proxyma
  • Shifter
  • VitalProxy

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
210.21.32.0/19
since Dec 2009
AS17622Residential49
5 always on
China Unicom IP network
via China Unicom Guangdong province network
210.21.0.0/18
since Apr 2016
AS17622Residential66
7 always on
China Unicom IP network
via China Unicom Guangdong province network
210.21.0.0/17
since May 2005
AS17622Residential100
16 always on
China Unicom IP network
via China Unicom Guangdong 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
210.21.0.0 - 210.22.255.255131,072UNICOM-CNChina Unicom IP networkALLOCATED PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 210.21.0.0/1665,536UNICOM-CNChina Unicom IP networkASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 210.21.0.0/1732,768UNICOM-GDChina Unicom Guangdong province networkALLOCATED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 210.21.51.0/24256guangzhou-linjie-lukou-corpguangzhou cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-GD

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
IPv4 market

Holder

Holder in the market →
Organization
China Unicom IP network
Range
210.21.0.0 - 210.22.255.255
Registration type
ALLOCATED PORTABLE
Reallocated to
China Unicom Guangdong province network
Reallocated range
210.21.0.0/17
Reallocation type
ALLOCATED NON-PORTABLE
Origin network

AS17622

CN
Name
China Unicom Guangzhou network
Type
Internet provider
Registered
Jan 18, 2001
Domain
chinaunicom.cn
Industry
Computer and Information Technology
Spamhaus ASN-DROP
not listed