AS17621 China Unicom Shanghai network 🇨🇳 CN

China Unicom. Announcing 818 prefixes, seen at the RIS collectors.

IPv4 prefixes

394

1,294,336 (5,056 × /24)

IPv6 prefixes

424

25 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS17621
Name: China Unicom Shanghai network
Organisation: China Unicom Shanghai Network
Country: 🇨🇳 CN
RIR: APNIC
Allocated: 2001-01-18
Scope: Not Disclosed
Peering policy: Open
Website: http://www.chinaunicom.cn
PeeringDB: net/32733

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

795 valid (97.2%) 12 invalid (1.5%) 11 no ROA (1.3%)

Upstreams

Networks seen providing transit to this one

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS4837 China Unicom Backbone	🇨🇳 CN	23,303	1,521	29,781	CAIDA
AS9929 China Unicom Industrial Internet Backbone	🇨🇳 CN	119	249	446	CAIDA

Peers

Adjacencies that look settlement-free rather than transit

No peers observed at the collectors.

Downstreams

Networks this one appears to provide transit to

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS10212 China Enterprise ICT Solutions Limited	🇨🇳 CN	2	39	118	CAIDA
AS10100 UBS Group AG	🇨🇭 CH	2	71	51	CAIDA
AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	🇨🇳 CN	0	824	1,760	CAIDA
AS23853 Shanghai Data Solution Co., Ltd.	🇨🇳 CN	0	86	736	CAIDA
AS9809 SHENZHEN NOVA TECHNOLOGIES DEVELOPMENT.,LTD.	🇨🇳 CN	0	28	314	CAIDA
AS59083 Shanghai Kuanhui Tech. Co.,ltd	🇨🇳 CN	0	11	309	CAIDA
AS146842 ChinaDataCom Corporation Limited	🇨🇳 CN	0	8	181	CAIDA
AS45079 GDS CHANGAN SERVICES Ltd.	🇨🇳 CN	0	19	173	CAIDA
AS109 CISCO SYSTEMS, INC.	🇺🇸 US	0	94	98	CAIDA
AS24141 Shanghai DMT Information Network cor.,LTD.	🇨🇳 CN	0	12	90	CAIDA
AS137759 MTS SYSTEM (China) Co.,Ltd	🇨🇳 CN	0	2	84	CAIDA
AS139148 China UnionPay Co., Ltd	🇨🇳 CN	0	5	74	CAIDA
AS37965 Pacnet Business Solutions LTD	🇨🇳 CN	0	81	67	CAIDA
AS56006 Shanghai Pudong Development Bank Co.,Ltd.	🇨🇳 CN	0	6	65	CAIDA
AS17775 shanghai science and technology network communication limited company	🇨🇳 CN	0	77	64	CAIDA
AS63570 China Internet Network Information Center	🇨🇳 CN	0	2	59	CAIDA
AS58850 Bloomberg Financial Information (Beijing) Co Ltd	🇨🇳 CN	0	3	40	CAIDA
AS7609 Morgan Stanley Management Service (Shanghai) Limited	🇨🇳 CN	0	2	39	CAIDA
AS137758 Industrial and Commercial Bank of China Limited	🇨🇳 CN	0	1	33	inferred
AS38375 GSGH security LLC	🇨🇳 CN	0	8	26	CAIDA
AS139138 Gopay Information Technology Co.,Ltd	🇨🇳 CN	0	4	18	inferred
AS151247 HSBC Software Development (Guangdong) Limited Shanghai Branch	🇨🇳 CN	0	1	15	CAIDA
AS56013 SAMSUNG SDS CHINA	🇨🇳 CN	0	13	14	CAIDA
AS59019 Beijing Kingsoft Cloud Internet Technology Co., Ltd	🇨🇳 CN	0	62	14	CAIDA
AS38381 TravelSky Technology Limited	🇨🇳 CN	0	41	12	CAIDA
AS135432 Visa Information Technology Beijing Co. Ltd.	🇨🇳 CN	0	2	12	CAIDA
AS137746 APNIC ASN block	🇨🇳 CN	0	3	11	CAIDA
AS17739 Shanghai Telecom Haplink Network Co., Ltd	🇨🇳 CN	0	1	11	CAIDA
AS139184 China Central Depository & Clearing Co., Ltd.	🇨🇳 CN	0	1	5	CAIDA
AS63538 Accenture (China) Co.,Ltd	🇨🇳 CN	0	1	4	CAIDA
AS55992 Beijing Qihu Technology Company Limited	🇨🇳 CN	0	26	4	CAIDA
AS45073 APNIC ASN block	🇨🇳 CN	0	1	3	CAIDA
AS58593 Microsoft Azure China (Shanghai Blue Cloud)	🇨🇳 CN	0	38	3	CAIDA
AS59078 Yunify Technologies Inc.	🇨🇳 CN	0	68	2	inferred
AS137715 GTJA Securities	🇨🇳 CN	0	4	2	CAIDA
AS45110 Beijing Tian Wei Xin Tong technology corp. limited.	🇨🇳 CN	0	45	2	CAIDA
AS63603 GSS China	🇨🇳 CN	0	6	1	CAIDA
AS55996 CYPRESS TELECOM (CHINA) LIMITED	🇨🇳 CN	0	23	1	CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.