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Data as of Nov 9, 2026

221.1.73.0/24

No anonymizer space · no proxy exits in 30 days

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

Announcement
this exact prefix
RPKI valid
Announced by
AS4837
Type
Business
50% of it
Recent change
New origin Aug 2026
its first announcement on record

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
221.0.0.0/15
since May 2005
AS4837Residential602
36 always on
China Unicom Shandong 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
221.0.0.0 - 221.3.127.255229,376UNICOM-SDChina Unicom Shandong province networkALLOCATED PORTABLE—hqs-ipabuse@chinaunicom.cn
└ 221.1.73.8/298HTQZHanting QizhongASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.16/298HTHXCCQHanting Huaxianchang ChangquASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.24/298HTSFBGLHanting Shifan BangonglouASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.32/298HTYXHanting YaxingASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.40/298HTNXBGLHanting Nongxin BangonglouASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.48/298HTFHDNHanting Fenghua DiannaoASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.56/298HTSZHanting SizhongASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.64/298HTSYXXHanting Shiyan XiaoxueASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.72/298HTHXXXHanting Hexi XiaoxueASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.80/298HXHLMLHanting Henglian MeilinASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.96/2816HTYLBXCHanting Yiliao BaoxianchuASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.112/298HTBDQCHanting Baida QicheASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.128/298HTXHWLHanTing XinHuaWuLiuASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD
└ 221.1.73.144/2816HTWJGSHanTing WanJiaGongSiASSIGNED NON-PORTABLE—hqs-ipabuse@chinaunicom.cn
via UNICOM-SD

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
Business12850%14
Residential12850%5

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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