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Data as of Nov 5, 2026

221.199.1.64/30

No anonymizer space · no proxy exits in 30 days

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

Announcement
221.199.1.0/24
RPKI valid
Announced by
AS4837
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
its first announcement on record

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
221.199.0.0/19
since May 2005
AS4837Residential28
1 always on
China Unicom Ningxia province network
221.199.0.0/17
since Feb 2006
AS4837Residential44
2 always on
China Unicom Ningxia province network

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
221.199.0.0/1732,768UNICOM-NXChina Unicom Ningxia province networkALLOCATED PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 221.199.1.0/24256NX-YC-ningxiaunicom-zhutiyunweibu-shebeihulianunknownASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-NX
└ 221.199.1.64/304NX-YC-ningxiaunicom-guanlixinxixitongbuunknownASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via NX-YC-ningxiaunicom-zhutiyunweibu-shebeihulian

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 221.199.1.0/24

Prefix
221.199.1.0/24
Announced by
AS4837 CHINA UNICOM China169 Backbone
Type
Residential
RPKI
RPKI valid
Netname
NX-YC-ningxiaunicom-zhutiyunweibu-shebeihulian
RIR
APNIC
Registry

Holder

Organization
China Unicom Ningxia province network
Range
221.199.0.0/17
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