Network · AS131822

AS131822 Korea National University of Transportation

AS131822 (Korea National University of Transportation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS131822

OwnerKorea National University of Transport
KindInternet service provider
Servers, not peopleno
IPv4 addresses13,056
IPv4 ranges21
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

210.119.144.0/20
220.66.0.0/22
210.119.200.0/22
210.119.192.0/22
222.116.156.0/23
222.116.154.0/23
218.151.68.0/23
210.119.198.0/23
114.70.68.0/23
114.70.216.0/23
222.116.158.0/24
218.159.9.0/24

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

Check an IP address →

Detect it in code

Spot AS131822 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 AS131822

Is AS131822 a datacenter or VPN network?

AS131822 (Korea National University of Transportation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS131822?

AS131822 is registered to Korea National University of Transportation. It announces about 13,056 IPv4 addresses.

How do I detect traffic from AS131822?

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.