Data as of Nov 5, 2026

221.199.32.0/20

5 residential-proxy exits · 30 days

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

Announcement

this exact prefix

RPKI valid

Announced by

AS4837

Type

Residential

84% of it

Residential-proxy exits

Proxy exits

0.12% of its addresses · 30 days

Always-on exits

20% of its exits

Spread

3 of 16

/24s with at least one exit

Providers

selling exits here

Oct 6, 2026 – Nov 4, 2026

Exits seen per day

541 observations

Residential
Business

/24s with the most always-on exits

/24	Always-on exits	Proxy exits
221.199.35.0/24	1	1
221.199.43.0/24	0	3
221.199.33.0/24	0	1

Proxy providers listing exits

2Captcha
BartProxies
BirdProxies
BottingTools
ByteProxies
Byteful
EnigmaProxy
FlashProxy
FlexyProxies
GonzoProxy
IPPeak
IPRoyal
Infatica
MangoProxy
NextProxy
NodeProxy
NovaProxy
Proxy-Seller
ProxyEmpire
ProxyRack
Proxyma
RainProxy
Shifter
VantageProxies

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder	RPKI
221.199.0.0/17 since Feb 2006	AS4837	Residential	44 2 always on	China Unicom Ningxia 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.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
221.199.0.0/17	32,768	UNICOM-NX	China Unicom Ningxia province network	ALLOCATED PORTABLE	—	hqs-ipabuse@chinaunicom.cn
└ 221.199.32.0/22	1,024	NX-ZW-PPPOE-pool	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.36.0/22	1,024	NX-SZS-PPPOE-pool	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.0/29	8	NX-YC-Yinchuan-Experiment-elementary-school	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.16/28	16	NX-SZS-Shizuishan-third-high-school	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.32/28	16	ChuangXinHuaYing-Netbar	ChuangXinHuaYing netbar	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.52/30	4	NX-YC-New-love-worm-Internet-bar-Ningda-branch-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.56/29	8	YinChuanGongShangJu	YinChuanGongShangJu	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.64/29	8	NX-YC-Ningxia-shide-new-model-build-material-Ltd	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.72/30	4	NX-WZ-Xiajin-breast-stock-Co-Ltd	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.80/30	4	NX-SZS-Shizuishan-third-high-school	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.88/30	4	NX-YC-Xinqitegongyujiudian	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.92/30	4	NX-YC-Greekn-futures	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.96/30	4	NX-YC-Oil-conduit-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.104/30	4	NX-YC-jiamaoshangmaogongsi	NX-YC-jiamaoshangmaogongsi	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.108/30	4	NX-YC-shadubingguan	NX-YC-shadubingguan	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.112/30	4	NX-YC-Youpailaisifangdichang	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.116/30	4	NX-YC-Ningxia-hengchangshun-trade-Ltd	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.120/30	4	NX-YC-Tanqi-Eden	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.128/30	4	NX-YC-Yinchuan-development-area-country-revenue	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.132/30	4	NX-YC-Xinji-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.136/30	4	NX-GY-PY-Guyuan-pengyang-science-and-technology-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.144/30	4	NX-YC-ningxiaunicom-hubinyingyeting	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.148/30	4	NX-YC-Yixingkong-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.152/30	4	NX-WZ-Wuzhong-Hotel	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.156/30	4	NX-YC-Topspeed-II-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.164 - 221.199.40.171	8	NX-YC-zhongtieshisanju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.172/30	4	NX-YC-Tianbao-Jiudian	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.188/30	4	NX-YC-Rujia-Jiudian	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.192/30	4	NX-YC-Chaoshu-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.196/30	4	NX-YC-North-nation-college	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.200/30	4	NX-YC-Ningxia-shide-new-pattern-build-material-Ltd	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.204/30	4	twenty-two-ZhongXue	22ZhongXue-DianliXiaoQu	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.208/30	4	NX-YC-Ningxia-ningdong-water-department-Ltd	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.212/30	4	YinChuanYiZhi	YinChuan Di Yi ZhiYeZhongXue	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.216/30	4	NX-WZ-Ningxia-electric-power-Yinnan-power-supply-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.220/30	4	NX-YC-Biejin-luneng-property-management-limited-liability-yinchuan-branch	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.224/30	4	NX-GY-Zhongguo-agriculture-develop-bank-Guyuan-branch-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.228/30	4	xiandaitongxin	xiandaitongxin	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.232/30	4	NX-YC-Yinchuan-jinfeng-area-shanghai-west-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.236/30	4	NX-YC-Ningxia-fire-safety-command	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.240/30	4	NX-SZS-Shizuishan-tidal-wave-Hotel	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.244/30	4	NX-YC-Ningxia-mobile-yinchuan-branch	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.248/30	4	NX-YC-Ningxia-yinchuan-Donglaishun-catering-Ltd	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.40.252/30	4	NX-WZ-Chenyuantanxiaoxue	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.0/30	4	NX-GY-Guyuan-water-department	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.4/30	4	NX-GY-Guyuan-Email-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.8/30	4	NX-GY-XJ-iji-high-school	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.16/30	4	NX-WZ-Wuzhong-audit-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.20/30	4	NX-WZ-Wuzhong-path-conveyance-serve-center	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.24/30	4	NX-WZ-Qintongxia-education-graduate-school	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.28/30	4	NX-WZ-Jinjigongyeyuanqu	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.32/30	4	NX-WZ-Qinhanqu-manage-place	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.36/30	4	NX-WZ-Town-layout-reconnaissance-design-institute	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.40/30	4	NX-WZ-Qintongxia-police-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.44/30	4	NX-WZ-Wuzhong-hengfeng-milk-Co-Ltd	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.56/30	4	NX-WZ-Wuzhong-science-and-technology-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.60/30	4	NX-GY-4zhong	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.64/30	4	NX-WZ-hanbaxiaoxue	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.68/30	4	NX-WZ-QTX-huanbaoju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.72/30	4	NX-WZ-dongtaxiangzhengfu	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.76/30	4	NX-WZ-dongtaxiangzhengfu	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.80/30	4	NX-WZ-dongtaxiangzhengfu	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.84/30	4	NX-WZ-QTX-4xiao	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.96/30	4	NX-WZ-pinganbaoxiangongsi	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.108/30	4	NX-GY-zhiliangjianduju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.112/30	4	NX-WZ-QTX-4xiao	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.124/30	4	NX-WZ-QTX-Jianghaishangmaogongsi	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.128/30	4	NX-GY-Laodongbaozhangju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.136/30	4	NX-WZ-3Gshiyanting	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.140/30	4	NX-WZ-Shenglizhenzhangfu	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.148/30	4	NX-WZ-Majiatanganshidianchang	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.152/30	4	NX-WZ-Huayingkuangye	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.156/30	4	NX-WZ-Xinqu3G-yanshiting	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.160/30	4	NX-GY-Laodongbaozhangju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.164/30	4	NX-WZ-Jinjizhen	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.168/30	4	NX-WZ-Liangshiju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.172/30	4	NX-WZ-Litongqu-Shuiwuju	NX-WZ-Litongqu-Shuiwuju	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.176/30	4	NX-GY-10M-Zhuanxian	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.184/30	4	NX-GY-Donghaisongjiahuisuo	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.192/30	4	NX-WZ-Zhongguoyouzhengchuxu-yinhang	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.41.196/30	4	NX-GY-Huasheng-Bingguan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn
└ 221.199.41.200/30	4	NX-WZ-Hongyuan-Wangluo	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn
└ 221.199.41.204/30	4	NX-GY-Gongjijin	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn
└ 221.199.41.208/30	4	NX-GY-Liupanshan-Dianchang-Bangonglou	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn
└ 221.199.42.0/30	4	NX-ZW-Hongshengbingguan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.4/30	4	NX-ZW-Jidian-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.8/30	4	NX-ZW-Zhongweibingguan	NX-ZW-Zhongweibingguan	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.12/30	4	NingXia-zhongwei-feitianwangba	NingXia-zhongwei-feitianwangba	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.16/30	4	NX-ZW-huaiyuan-1zhong	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.20/30	4	NX-ZW-Xuchi-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.24/30	4	NX-ZW-Zhongwei-science-technology-office	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.28/30	4	NX-ZW-huaiyuan-zhengwuwang	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.32/30	4	NingXia-zhongwei-ADSLzhuanxian	NingXia-zhongwei-ADSLzhuanxian	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.36/30	4	NX-ZW-zhongweiunicom	NX-ZW-zhongweiunicom	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.44/30	4	NX-ZW-zhongjianshiju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.52/30	4	NX-ZW-Lvzhou-fandian	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.56/30	4	NX-ZW-Haiyuaizhengwuwang-1	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.60/30	4	NX-ZW-Haiyuaizhengwuwang-2	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.64/30	4	NX-ZW-Haiyuaizhengwuwang-3	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.68/30	4	NX-ZW-Haiyuaizhengwuwang-4	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.72/30	4	NX-ZW-Haiyuaizhengwuwang-5	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.76/30	4	NX-ZW-Haiyuaizhengwuwang-6	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.80/30	4	NX-ZW-Heicheng-Zhuanxian-10MB	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.84/30	4	NX-ZW-Heicheng-Wuliu	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.42.88/30	4	NX-ZW-Ruitaikeji	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn
└ 221.199.42.224/27	32	NX-ZW-huaiyuan-zhengwuwang	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.0/30	4	NX-SZS-Dawukou-Net-on-Net-Internet-bar	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.4/30	4	NX-SZS-Shizuishan-science-and-technology-info-place	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.8/30	4	NX-SZS-Luyoutan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.12/30	4	NingXia-hengkanjianshejituangongsi	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.16/30	4	NX-SZS-youzhengsudi	NX-SZS-youzhengsudi	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.20/30	4	NX-SZS-binhe-wangba	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.24/30	4	NX-SZS-pingluo-renminfayuan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.28/30	4	NX-SZS-shizuishanyucai-school	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.32/30	4	NX-SZS-pingluo-guoshuiju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.36/30	4	NX-SZS-shizuishan-caizhengju	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.40/30	4	NX-SZS-shizuishan-meitan-school	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.44/30	4	NX-SZS-ningmeiwuzigongsi	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.48/30	4	NX-SZS-shazhoushangwubingguan	NX-SZS-shazhoushangwubingguan	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.52/30	4	NX-SZS-5zhong	NX-SZS-5zhong	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.56/30	4	NX-SZS-xiangyunbingguan	NX-SZS-xiangyunbingguan	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.60/30	4	NX-SZS-GPS-server	NX-SZS-GPS-server	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.64/30	4	NX-SZS-PL-Huiyuanguozhi	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.68/30	4	NX-SZS-renminshangchang	NX-SZS-GPS server	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.76/30	4	NX-SZS-Dailishang	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.80/30	4	NX-SZS-DWK-Haiguan-Hotel	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.84/30	4	NX-SZS-DWK-Hengchangjianshejituan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.88/30	4	NX-SZS-DWK-Yanshan-jiudian	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.92/30	4	NX-SZS-DWK-Shijiyuanbingguan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.96/30	4	NX-SZS-DWK-Tianhong-bingguan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.100/30	4	NX-SZS-HN-Xinshidai-bingguan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.104/30	4	NX-SZS-Huiyuan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.112/30	4	NX-SZS-Wangleyi	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.116/30	4	NX-SZS-Huilian-bingguan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.120/30	4	NX-SZS-Dawukou-hongliang-meikuang	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.124/30	4	NX-SZS-Huinong-basai-fangdichan	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.128/30	4	NX-SZS-1zhong	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.136/30	4	NX-SZS-Huinong-Tiande-Taiyangneng	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.140/30	4	NX-SZS-Suning-Dianqi	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn
└ 221.199.43.224/28	16	NX-SZS-shizuishan-liantong	NX-SZS-shizuishan-liantong	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.43.240/28	16	NX-SZS-Shizuishan-guangming-center	unknown	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX
└ 221.199.44.1 - 221.199.47.255	1,023	ChinaNetCom-NingXia-Line	ChinaNetCom-NingXia-Line	ASSIGNED NON-PORTABLE	—	hqs-ipabuse@chinaunicom.cn via UNICOM-NX

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

4,096 addresses

Type	Addresses	Share	Ranges
Residential	3,452	84%	29
Business	640	16%	137
Mobile	4	0.10%	1

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS4837

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

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
221.199.32.0/20	AS4837	/20	APNIC	RPKI valid
221.199.0.0/17	AS4837	/17	APNIC	Too specific

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS4837	APNIC	China Unicom	MAINT-CNCGROUP-RR	Jun 8, 2023
AS4837	NTTCOM	CMI IP Transit	MAINT-CMI-INT-HK	May 25, 2016
AS4837	RADB	CMI (Customer Route)	MAINT-AS58453	Nov 13, 2023

221.199.32.0/20

Residential-proxy exits

Exits seen per day

/24s with the most always-on exits

Proxy providers listing exits

Announcements

Covering announcements

Registrations in this block

Composition

Address share

Types across the prefix

Network & registry

AS4837

Covering aggregate above, the prefix's own history below

Routing history

Route origin authorizations

Route objects on the exact prefix

Registration for this announcement

Abuse contact