Network · AS15894

AS15894 LEITWERK AG

AS15894 (LEITWERK AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS15894

OwnerLEITWERK AG
KindInternet service provider
Servers, not peopleno
IPv4 addresses4,864
IPv4 ranges3
IPv6 ranges17

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

217.28.96.0/20
185.39.14.0/23
194.41.0.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS15894 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 AS15894

Is AS15894 a datacenter or VPN network?

AS15894 (LEITWERK AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS15894?

AS15894 is registered to LEITWERK AG. It announces about 4,864 IPv4 addresses.

How do I detect traffic from AS15894?

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.