Network · AS17578

AS17578 CHEJU HALLA UNIVERSITY

AS17578 (CHEJU HALLA UNIVERSITY) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17578

OwnerCHEJU HALLA UNIVERSITY
KindInternet service provider
Servers, not peopleno
IPv4 addresses5,632
IPv4 ranges8
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

14.49.224.0/21
61.39.244.0/22
14.49.232.0/22
61.39.248.0/23
61.39.243.0/24
61.39.225.0/24
210.107.105.0/24
115.88.66.0/24

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

Check an IP address →

Detect it in code

Spot AS17578 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 AS17578

Is AS17578 a datacenter or VPN network?

AS17578 (CHEJU HALLA UNIVERSITY) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17578?

AS17578 is registered to CHEJU HALLA UNIVERSITY. It announces about 5,632 IPv4 addresses.

How do I detect traffic from AS17578?

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.