Network · AS50128

AS50128 CNC, a.s.

AS50128 (CNC, a.s.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS50128

OwnerCNC, a.s.
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges4
IPv6 ranges16

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

109.71.68.0/22
109.71.64.0/23
194.1.130.0/24
109.71.67.0/24

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

Check an IP address →

Detect it in code

Spot AS50128 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 AS50128

Is AS50128 a datacenter or VPN network?

AS50128 (CNC, a.s.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS50128?

AS50128 is registered to CNC, a.s.. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS50128?

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.