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Data as of Nov 5, 2026

221.5.212.0/24

No anonymizer space · no proxy exits in 30 days

CHINA UNICOM China169 Backbone · space held by China Unicom Chongqing province network

Announcement
this exact prefix
RPKI valid
Announced by
AS4837
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Jul 2026
its first announcement on record

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
221.5.128.0/17
since May 2005
AS4837Residential6China Unicom Chongqing 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
221.5.128.0/1732,768UNICOM-CQChina Unicom Chongqing province networkALLOCATED PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 221.5.208.0/204,096ChangFeng-NGNChangFeng NGN Traffic Network AccessASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-CQ

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
Registry

Holder

Organization
China Unicom Chongqing province network
Range
221.5.128.0/17
Registration type
ALLOCATED PORTABLE
Origin network

AS4837

CN
Name
CHINA UNICOM China169 Backbone
Type
Internet provider
Registered
Sep 17, 2001
Domain
chinaunicom.cn
Website
www.chinaunicom.cn/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed