Network · AS50551

AS50551 EURO PC Piotr Kwasnik

AS50551 (EURO PC Piotr Kwasnik) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS50551

OwnerEURO PC Piotr Kwasnik
KindInternet service provider
Servers, not peopleno
IPv4 addresses512
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

81.15.157.0/24
185.48.31.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS50551 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 AS50551

Is AS50551 a datacenter or VPN network?

AS50551 (EURO PC Piotr Kwasnik) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS50551?

AS50551 is registered to EURO PC Piotr Kwasnik. It announces about 512 IPv4 addresses.

How do I detect traffic from AS50551?

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.