Network · AS39405

AS39405 Eurofiber France SAS

AS39405 (Eurofiber France SAS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS39405

OwnerEurofiber France SAS
KindInternet service provider
Servers, not peopleno
IPv4 addresses17,152
IPv4 ranges21
IPv6 ranges4

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

93.93.40.0/21
141.0.200.0/21
85.31.32.0/22
45.153.92.0/22
185.253.92.0/22
185.249.44.0/22
185.249.184.0/22
185.244.72.0/22
185.224.32.0/22
185.146.40.0/22
185.116.128.0/22
91.194.178.0/23

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

Check an IP address →

Detect it in code

Spot AS39405 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 AS39405

Is AS39405 a datacenter or VPN network?

AS39405 (Eurofiber France SAS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS39405?

AS39405 is registered to Eurofiber France SAS. It announces about 17,152 IPv4 addresses.

How do I detect traffic from AS39405?

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.