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Data as of Nov 8, 2026

210.51.42.0/24

57 residential-proxy exits · 30 days

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

Announcement
this exact prefix
RPKI valid
Announced by
AS17621
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
57
22% of its addresses · 30 days
Providers
55
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

5.1K observations

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • Ake.net
  • BartProxies
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • DataImpulse
  • EnigmaProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GonzoProxy
  • HideProxy
  • HydraProxy
  • IPOasis
  • IPPeak
  • Infatica
  • InfiniteProxies
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • MangoProxy
  • MarsProxies
  • NextProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • PROXYWING_BASIC
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • Proxiware
  • Proxmint
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • Proxyma
  • RainProxy
  • ResiProxies
  • SPYDERPROXY_PREMIUM
  • Shifter
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
210.51.0.0/16
since May 2005
AS9929Internet provider63China 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
└ 210.51.20.0 - 210.51.63.25511,264CNC-SH-IDCShanghai Caohejing IDC of China NetcomALLOCATED 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.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
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

AS17621

CN
Name
China Unicom Shanghai network
Type
Internet provider
Registered
Jan 18, 2001
Domain
chinaunicom.cn
Website
www.chinaunicom.cn
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed