AS21738
Rozint
AS21738 is an Autonomous System — a group of IP networks managed under a single routing policy — operated by Rozint, announcing routes from US. ScanMalware.com has recorded 1 public scan of 1 distinct URL hosted on this network, the earliest from 2026-03-21 and the most recent from 2026-03-21.
In current BGP routing data, AS21738 announces 209 IPv4 prefixes and 208 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 AS21738 in BGP routing tables — they form its effective transit and peering profile.
Recent public scans on AS21738
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 |
|---|---|
| 502 Bad Gateway https://s2-b.time.mci1.us.rozint.net | 2026-03-21 |
Open the full AS21738 search interface — filters, pagination and BGP detail →
Frequently asked questions about AS21738
- Does hosting a site on AS21738 make it unsafe?
- No. AS21738 is a network operated by Rozint, 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 AS21738 has ScanMalware scanned?
- ScanMalware has recorded 1 public scans across 1 distinct URLs hosted on AS21738. The figure updates as new URLs on this network are submitted.
- Which networks provide transit for AS21738?
- In the BGP paths ScanMalware observes, AS21738 is most often reached through AS6939 (HURRICANE), AS1299 (TWELVE99 Arelion Sweden AB) and AS32097 (WII). 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 AS21738 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.