Network check
ASN
AS41437
- OwnerKNAPP AG
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses2,048
- IPv4 ranges1
- IPv6 ranges1
Risk score0
Nothing suspicious found.
Network · AS41437
AS41437 KNAPP AG
AS41437 (KNAPP AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS41437 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 AS41437
Is AS41437 a datacenter or VPN network?
AS41437 (KNAPP AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS41437?
AS41437 is registered to KNAPP AG. It announces about 2,048 IPv4 addresses.
How do I detect traffic from AS41437?
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.