Network · AS8664

AS8664 University of Warsaw

AS8664 (University of Warsaw) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS8664

OwnerUniversity of Warsaw
KindInternet service provider
Servers, not peopleno
IPv4 addresses8,192
IPv4 ranges6
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

212.87.16.0/20
213.135.56.0/21
213.135.52.0/22
213.135.50.0/23
213.135.43.0/24
193.219.28.0/24

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

Check an IP address →

Detect it in code

Spot AS8664 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 AS8664

Is AS8664 a datacenter or VPN network?

AS8664 (University of Warsaw) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS8664?

AS8664 is registered to University of Warsaw. It announces about 8,192 IPv4 addresses.

How do I detect traffic from AS8664?

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.