Network · AS31511

AS31511 Infrabel NV van publiek recht

AS31511 (Infrabel NV van publiek recht) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS31511

OwnerInfrabel NV van publiek recht
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges3
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

185.30.252.0/22
195.62.68.0/23
195.177.246.0/23

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

Check an IP address →

Detect it in code

Spot AS31511 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 AS31511

Is AS31511 a datacenter or VPN network?

AS31511 (Infrabel NV van publiek recht) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS31511?

AS31511 is registered to Infrabel NV van publiek recht. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS31511?

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.