AS3303
SWISSCOM Swisscom (Schweiz) AG
AS3303 is an Autonomous System — a group of IP networks managed under a single routing policy — operated by SWISSCOM Swisscom (Schweiz) AG, announcing routes from CH. ScanMalware.com has recorded 85 public scans of 77 distinct URLs hosted on this network, the earliest from 2025-10-03 and the most recent from 2026-06-17.
In current BGP routing data, AS3303 announces 9,329 IPv4 prefixes and 1,276 IPv6 prefixes, and is reached through 3 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 |
|---|---|
| Welcome to the Office of the Attorney General of Switzerland http://www.bundesanwaltschaft.ch | 2026-06-17 |
| State Secretariat for International Finance - SIF https://www.sif.admin.ch/en | 2026-06-13 |
| Switzerland’s international cooperation https://www.sdc.admin.ch/ | 2026-06-13 |
| Herzlich willkommen! https://freude-macherei.ch | 2026-06-13 |
| swisstopo – wissen wohin http://www.swisstopo.admin.ch | 2026-06-13 |
| Bundesamt für Zoll und Grenzsicherheit BAZG http://www.ezv.admin.ch | 2026-06-11 |
| Promoting culture. Strengthening diversity. http://www.bak.admin.ch | 2026-06-10 |
| Bundesamt für Wohnungswesen BWO http://www.bwo.admin.ch | 2026-06-10 |
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 SWISSCOM Swisscom (Schweiz) AG, 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 85 public scans across 77 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 AS6939 (HURRICANE). 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.