Network check
ASN
AS9591
- OwnerNational Institute for Fusion Science
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses65,536
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS9591
AS9591 National Institute for Fusion Science
AS9591 (National Institute for Fusion Science) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS9591 traffic at signup.
Send the visitor's IP. The response includes the ASN, the owner and flags.hosting.
curl https://veqen-app.com/v1/ip/check \
-H "Authorization: Bearer $VEQEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"ip": "203.0.113.7"}'import os, requests
r = requests.post(
"https://veqen-app.com/v1/ip/check",
headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
json={"ip": "203.0.113.7"},
timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])const res = await fetch("https://veqen-app.com/v1/ip/check", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({"ip": "203.0.113.7"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);Questions
About AS9591
Is AS9591 a datacenter or VPN network?
AS9591 (National Institute for Fusion Science) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS9591?
AS9591 is registered to National Institute for Fusion Science. It announces about 65,536 IPv4 addresses.
How do I detect traffic from AS9591?
Call the Veqen IP check with the visitor's address. The response includes the ASN, the owner and whether the network is a datacenter, VPN network, relay or ISP.