Network · AS203363

AS203363 Kuroit Limited

AS203363 (Kuroit Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS203363

  • OwnerKuroit Limited
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses2,304
  • IPv4 ranges9
  • IPv6 ranges2
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 91.205.158.0/24
  • 5.83.214.0/24
  • 46.37.124.0/24
  • 45.80.193.0/24
  • 45.67.85.0/24
  • 2.58.203.0/24
  • 178.93.148.0/24
  • 147.90.210.0/24
  • 109.205.214.0/24

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

Check an IP address →

Detect it in code

Spot AS203363 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 AS203363

Is AS203363 a datacenter or VPN network?

AS203363 (Kuroit Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS203363?

AS203363 is registered to Kuroit Limited. It announces about 2,304 IPv4 addresses.

How do I detect traffic from AS203363?

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.