Network · AS15623

AS15623 Cyberlink AG

AS15623 (Cyberlink AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS15623

  • OwnerCyberlink AG
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses100,096
  • IPv4 ranges34
  • IPv6 ranges6
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 62.12.128.0/17
  • 213.189.128.0/19
  • 213.158.128.0/19
  • 212.55.192.0/19
  • 212.45.192.0/19
  • 195.226.0.0/19
  • 195.144.160.0/19
  • 217.14.64.0/20
  • 217.75.16.0/21
  • 45.94.88.0/22
  • 185.71.12.0/22
  • 185.230.20.0/22

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

Check an IP address →

Detect it in code

Spot AS15623 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 AS15623

Is AS15623 a datacenter or VPN network?

AS15623 (Cyberlink AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS15623?

AS15623 is registered to Cyberlink AG. It announces about 100,096 IPv4 addresses.

How do I detect traffic from AS15623?

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.