Network · AS56381

AS56381 level66.network UG (haftungsbeschraenkt)

AS56381 (level66.network UG (haftungsbeschraenkt)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS56381

Ownerlevel66.network UG (haftungsbeschraenk
KindInternet service provider
Servers, not peopleno
IPv4 addresses512
IPv4 ranges2
IPv6 ranges3

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

141.98.139.0/24
141.98.136.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS56381 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 AS56381

Is AS56381 a datacenter or VPN network?

AS56381 (level66.network UG (haftungsbeschraenkt)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS56381?

AS56381 is registered to level66.network UG (haftungsbeschraenkt). It announces about 512 IPv4 addresses.

How do I detect traffic from AS56381?

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.