AS17621
China Unicom Shanghai network
AS17621 is an Autonomous System — a group of IP networks managed under a single routing policy — operated by China Unicom Shanghai network, announcing routes from CN. ScanMalware.com has recorded 34 public scans of 34 distinct URLs hosted on this network, the earliest from 2025-12-14 and the most recent from 2026-07-07.
In current BGP routing data, AS17621 announces 7,884 IPv4 prefixes and 10,072 IPv6 prefixes, and is reached through 2 observed upstream providers. A network's routing footprint and transit relationships are useful context for judging whether a hosted site sits on established infrastructure or on a network with a pattern of abuse.
Upstream transit providers
These Autonomous Systems are most frequently seen forwarding traffic for AS17621 in BGP routing tables — they form its effective transit and peering profile.
Recent public scans on AS17621
A rolling sample of recent public scans of hosts on this network. Listing a site here is not a safety judgement — open a scan to see its full verdict.
| Site | Scanned |
|---|---|
| 406 Not Acceptable https://sh2-api2.intsig.net | 2026-07-07 |
| 猫扑手游网-手机游戏下载-好玩的手游推荐 https://mopxz.com | 2026-06-26 |
| https://uapi.mp.360.cn | 2026-06-17 |
| CamScanner | Turn your phone and tablet into scanner for intelligent document management. https://w105.camscanner.com | 2026-05-18 |
| 知末网 - 下素材找灵感看案例 - 发现更好的设计 https://znzmo.com | 2026-04-18 |
| Home - 通力中国 https://kone.cn | 2026-04-15 |
| https://pull-tsl-q11.douyincdn.com.sched.l11-dk.tdnsv5.com | 2026-04-05 |
| 360联盟 https://lianmeng.360.cn | 2026-04-03 |
Open the full AS17621 search interface — filters, pagination and BGP detail →
Frequently asked questions about AS17621
- Does hosting a site on AS17621 make it unsafe?
- No. AS17621 is a network operated by China Unicom Shanghai network, and like any Autonomous System it carries a mix of legitimate and malicious sites. Hosting location is context, not a verdict — ScanMalware scores each scanned page on its own content, scripts and behaviour.
- How many sites on AS17621 has ScanMalware scanned?
- ScanMalware has recorded 34 public scans across 34 distinct URLs hosted on AS17621. The figure updates as new URLs on this network are submitted.
- Which networks provide transit for AS17621?
- In the BGP paths ScanMalware observes, AS17621 is most often reached through AS4837 (CHINA169-BACKBONE CHINA UNICOM China169 Backbone) and AS9929 (CUII CHINA UNICOM Industrial Internet Backbone). These upstream providers form the network's effective transit profile.
How ScanMalware builds this profile
ScanMalware.com performs public URL scans with a real headless browser, then maps each scanned host to its current ASN ownership and BGP routing context. This profile is built from those scans plus live routing data — the IP prefixes AS17621 announces, the networks that transit it, and the country it operates from — letting you pivot from one suspicious host to the wider network it sits on.
Browse more profiled networks on the ASN index, or scan a URL to see its hosting network.