Network · AS204019

AS204019 Trojniak Krzysztof FLYNET

AS204019 (Trojniak Krzysztof FLYNET) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS204019

OwnerTrojniak Krzysztof FLYNET
KindInternet service provider
Servers, not peopleno
IPv4 addresses768
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

213.199.208.0/24
194.1.253.0/24
185.107.66.0/24

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

Check an IP address →

Detect it in code

Spot AS204019 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 AS204019

Is AS204019 a datacenter or VPN network?

AS204019 (Trojniak Krzysztof FLYNET) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS204019?

AS204019 is registered to Trojniak Krzysztof FLYNET. It announces about 768 IPv4 addresses.

How do I detect traffic from AS204019?

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.