Network · AS9857

AS9857 KOREA GAS CORPORATION

AS9857 (KOREA GAS CORPORATION) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS9857

OwnerKOREA GAS CORPORATION
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,304
IPv4 ranges5
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

211.253.204.0/22
210.124.210.0/23
61.36.228.0/24
210.124.38.0/24
210.124.209.0/24

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

Check an IP address →

Detect it in code

Spot AS9857 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 AS9857

Is AS9857 a datacenter or VPN network?

AS9857 (KOREA GAS CORPORATION) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS9857?

AS9857 is registered to KOREA GAS CORPORATION. It announces about 2,304 IPv4 addresses.

How do I detect traffic from AS9857?

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.