Network · AS203919

AS203919 LUMADOCK LTD

AS203919 (LUMADOCK LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS203919

  • OwnerLUMADOCK LTD
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses4,864
  • IPv4 ranges18
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 5.10.250.0/23
  • 83.97.114.0/24
  • 80.91.88.0/24
  • 80.91.86.0/24
  • 80.91.79.0/24
  • 80.91.65.0/24
  • 45.43.166.0/24
  • 45.135.36.0/24
  • 38.79.154.0/24
  • 38.7.145.0/24
  • 38.143.19.0/24
  • 38.133.142.0/24

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

Check an IP address →

Detect it in code

Spot AS203919 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 AS203919

Is AS203919 a datacenter or VPN network?

AS203919 (LUMADOCK LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS203919?

AS203919 is registered to LUMADOCK LTD. It announces about 4,864 IPv4 addresses.

How do I detect traffic from AS203919?

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.