Network · AS197451

AS197451 Brno University of Technology

AS197451 (Brno University of Technology) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS197451

OwnerBrno University of Technology
KindInternet service provider
Servers, not peopleno
IPv4 addresses66,816
IPv4 ranges10
IPv6 ranges5

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

147.229.0.0/17
147.229.128.0/18
147.229.192.0/19
147.229.224.0/20
147.229.240.0/21
185.149.204.0/22
147.229.248.0/22
185.62.108.0/23
147.229.252.0/23
147.229.254.0/24

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

Check an IP address →

Detect it in code

Spot AS197451 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 AS197451

Is AS197451 a datacenter or VPN network?

AS197451 (Brno University of Technology) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS197451?

AS197451 is registered to Brno University of Technology. It announces about 66,816 IPv4 addresses.

How do I detect traffic from AS197451?

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.