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Data as of Nov 10, 2026

221.4.40.0/24

No anonymizer space · no proxy exits in 30 days

China Unicom Guangzhou network · space held by China Unicom Guangdong province network

Announcement
this exact prefix
RPKI valid
Announced by
AS17622
Type
Residential
97% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
221.4.40.0/22
since Aug 2021
AS17622ResidentialChina Unicom Guangdong province network
221.4.32.0/20
since May 2014
AS17622Residential219
2 always on
China Unicom Guangdong province network
221.4.32.0/19
since May 2014
AS17622Residential224
3 always on
China Unicom Guangdong province network
221.4.0.0/16
since May 2005
AS17816Residential281
9 always on
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
221.4.0.0 - 221.5.127.25598,304UNICOM-GDChina Unicom Guangdong province networkALLOCATED PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 221.4.40.16/298GUANGZHOU-UNIVERSITYguangzhou cityASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-GD
└ 221.4.40.64/298BANG-XUN-ASIA-INFOguangzhou 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.

Composition

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

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Residential24897%2
Business83.1%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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