AS3303
Bluewin
AS3303 is an Autonomous System — a group of IP networks managed under a single routing policy — operated by Bluewin, announcing routes from CH. ScanMalware.com has recorded 105 public scans of 96 distinct URLs hosted on this network, the earliest from 2025-10-03 and the most recent from 2026-11-03.
In current BGP routing data, AS3303 announces 344 IPv4 prefixes and 49 IPv6 prefixes, and is reached through 5 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 AS3303 in BGP routing tables — they form its effective transit and peering profile.
Recent public scans on AS3303
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 |
|---|---|
| Login — PentAGI https://pentagi.corecloud.ch/ | 2026-11-03 |
| Opferhilfe https://www.bj.admin.ch/de/opferhilfe | 2026-10-30 |
| National Cyber Security Centre https://ncsc.admin.ch | 2026-10-16 |
| WOLF https://wolf.hupac.ch | 2026-10-16 |
| Prof. Dr. Francis Halzen | Researcher https://sciprofiles.com/profile/1912828 | 2026-10-06 |
| Thurgauer Kantonalbank - Mehr als eine Bank - seit 1871 im Thurgau https://tkb.ch | 2026-10-02 |
| STAR Group | Your single-source partner for products and services https://star-group.se | 2026-10-02 |
| blue Cinemas near you with the best movies | blue Cinema https://bluecinema.ch | 2026-09-12 |
Open the full AS3303 search interface — filters, pagination and BGP detail →
Frequently asked questions about AS3303
- Does hosting a site on AS3303 make it unsafe?
- No. AS3303 is a network operated by Bluewin, 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 AS3303 has ScanMalware scanned?
- ScanMalware has recorded 105 public scans across 96 distinct URLs hosted on AS3303. The figure updates as new URLs on this network are submitted.
- Which networks provide transit for AS3303?
- In the BGP paths ScanMalware observes, AS3303 is most often reached through AS2497 (IIJ - Internet Initiative Japan Inc.), AS12637 (SEEWEB SEEWEB s.r.l.) and AS34549 (MEER-AS meerfarbig GmbH & Co. KG). 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 AS3303 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.