Network · AS18337

AS18337 KyungSan University

AS18337 (KyungSan University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS18337

  • OwnerKyungSan University
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses5,376
  • IPv4 ranges10
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 211.39.112.0/21
  • 211.39.120.0/23
  • 211.39.110.0/23
  • 113.198.196.0/23
  • 113.198.192.0/23
  • 211.39.122.0/24
  • 113.198.202.0/24
  • 113.198.201.0/24
  • 113.198.198.0/24
  • 113.198.194.0/24

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

Check an IP address →

Detect it in code

Spot AS18337 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 AS18337

Is AS18337 a datacenter or VPN network?

AS18337 (KyungSan University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS18337?

AS18337 is registered to KyungSan University. It announces about 5,376 IPv4 addresses.

How do I detect traffic from AS18337?

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.