Network · AS9631

AS9631 youngsan university

AS9631 (youngsan university) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS9631

  • Owneryoungsan university
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses8,448
  • IPv4 ranges12
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 61.76.236.0/22
  • 221.164.68.0/22
  • 221.164.0.0/22
  • 220.119.248.0/22
  • 211.220.228.0/22
  • 210.110.44.0/22
  • 61.75.200.0/23
  • 61.75.198.0/23
  • 220.77.176.0/23
  • 221.164.5.0/24
  • 211.220.232.0/24
  • 121.67.137.0/24

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

Check an IP address →

Detect it in code

Spot AS9631 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 AS9631

Is AS9631 a datacenter or VPN network?

AS9631 (youngsan university) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS9631?

AS9631 is registered to youngsan university. It announces about 8,448 IPv4 addresses.

How do I detect traffic from AS9631?

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.