Network · AS9953

AS9953 Hyundai Engineering Construction Co., Ltd.(HDEC)

AS9953 (Hyundai Engineering Construction Co., Ltd.(HDEC)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS9953

  • OwnerHyundai Engineering Construction Co.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses2,048
  • IPv4 ranges1
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 203.239.216.0/21

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

Check an IP address →

Detect it in code

Spot AS9953 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 AS9953

Is AS9953 a datacenter or VPN network?

AS9953 (Hyundai Engineering Construction Co., Ltd.(HDEC)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS9953?

AS9953 is registered to Hyundai Engineering Construction Co., Ltd.(HDEC). It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS9953?

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.