Network · AS1104

AS1104 Stichting Nederlandse Wetenschappelijk Onderzoek Instituten

AS1104 (Stichting Nederlandse Wetenschappelijk Onderzoek Instituten) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS1104

  • OwnerStichting Nederlandse Wetenschappelijk
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses78,592
  • IPv4 ranges13
  • IPv6 ranges14
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 145.110.0.0/16
  • 145.116.48.0/20
  • 194.171.96.0/21
  • 145.116.208.0/21
  • 185.153.60.0/22
  • 145.107.4.0/22
  • 145.102.132.0/22
  • 192.16.194.0/23
  • 192.16.199.0/24
  • 192.16.192.0/24
  • 192.16.186.0/24
  • 192.16.185.0/24

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

Check an IP address →

Detect it in code

Spot AS1104 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 AS1104

Is AS1104 a datacenter or VPN network?

AS1104 (Stichting Nederlandse Wetenschappelijk Onderzoek Instituten) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS1104?

AS1104 is registered to Stichting Nederlandse Wetenschappelijk Onderzoek Instituten. It announces about 78,592 IPv4 addresses.

How do I detect traffic from AS1104?

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.