Network · AS15744

AS15744 Silesian University of Technology, Computer Centre

AS15744 (Silesian University of Technology, Computer Centre) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS15744

OwnerSilesian University of Technology, Com
KindInternet service provider
Servers, not peopleno
IPv4 addresses20,224
IPv4 ranges15
IPv6 ranges16

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

212.106.144.0/20
83.230.80.0/21
83.230.56.0/21
212.106.168.0/21
212.106.128.0/21
83.230.88.0/22
83.230.52.0/22
213.227.76.0/22
213.227.64.0/22
212.106.140.0/22
195.82.184.0/22
83.230.92.0/23

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

Check an IP address →

Detect it in code

Spot AS15744 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 AS15744

Is AS15744 a datacenter or VPN network?

AS15744 (Silesian University of Technology, Computer Centre) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS15744?

AS15744 is registered to Silesian University of Technology, Computer Centre. It announces about 20,224 IPv4 addresses.

How do I detect traffic from AS15744?

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.