Network · AS39686

AS39686 Eurofiber Nederland BV

AS39686 (Eurofiber Nederland BV) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS39686

OwnerEurofiber Nederland BV
KindInternet service provider
Servers, not peopleno
IPv4 addresses210,176
IPv4 ranges80
IPv6 ranges35

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

90.145.128.0/17
90.145.64.0/18
84.53.64.0/18
90.145.0.0/19
89.20.160.0/19
82.148.192.0/19
161.51.64.0/19
145.77.128.0/19
144.178.64.0/19
144.178.192.0/19
90.145.32.0/20
37.251.176.0/20

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

Check an IP address →

Detect it in code

Spot AS39686 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 AS39686

Is AS39686 a datacenter or VPN network?

AS39686 (Eurofiber Nederland BV) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS39686?

AS39686 is registered to Eurofiber Nederland BV. It announces about 210,176 IPv4 addresses.

How do I detect traffic from AS39686?

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.