AS3257
GTT Communications Inc.
AS3257 is an Autonomous System — a group of IP networks managed under a single routing policy — operated by GTT Communications Inc., announcing routes from US. ScanMalware.com has recorded 64 public scans of 62 distinct URLs hosted on this network, the earliest from 2025-10-03 and the most recent from 2026-08-04.
In current BGP routing data, AS3257 announces 32,268 IPv4 prefixes and 1,947 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 AS3257 in BGP routing tables — they form its effective transit and peering profile.
Recent public scans on AS3257
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 |
|---|---|
| webmail.telespazio.de https://webmail.telespazio.de | 2026-08-04 |
| Kean Jersey City | Kean University https://www.njcu.edu | 2026-07-19 |
| eCourier | Courier Services Available 24/7, 365 Days a Year https://www.ecourier.co.uk | 2026-07-16 |
| GTT - EnvisionDX - Sign In https://envision.gtt.net | 2026-07-15 |
| An Interview with David Clayton-Thomas – Making A Scene! https://www.makingascene.org/an-interview-with-david-clayton-thomas/ | 2026-06-25 |
| Amber Valley Borough Council http://www.ambervalley.gov.uk | 2026-06-15 |
| Kirklees Council | Home Page http://www.kirklees.gov.uk | 2026-06-02 |
| www.onat.it - comunita' montana Orvietano Narnese Amerino Tuderte - Home page https://www.onat.it | 2026-05-28 |
Open the full AS3257 search interface — filters, pagination and BGP detail →
Frequently asked questions about AS3257
- Does hosting a site on AS3257 make it unsafe?
- No. AS3257 is a network operated by GTT Communications Inc., 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 AS3257 has ScanMalware scanned?
- ScanMalware has recorded 64 public scans across 62 distinct URLs hosted on AS3257. The figure updates as new URLs on this network are submitted.
- Which networks provide transit for AS3257?
- In the BGP paths ScanMalware observes, AS3257 is most often reached through AS4637 (ASN-TELSTRA-GLOBAL Telstra Global) and AS6453 (AS6453). 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 AS3257 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.