Network · AS18328

AS18328 Dotname Korea Corp

AS18328 (Dotname Korea Corp) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS18328

OwnerDotname Korea Corp
KindInternet service provider
Servers, not peopleno
IPv4 addresses16,384
IPv4 ranges11
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

121.0.64.0/19
121.0.96.0/21
121.0.112.0/21
121.0.120.0/22
121.0.104.0/22
121.0.124.0/23
121.0.108.0/23
45.120.66.0/24
45.120.65.0/24
121.0.126.0/24
121.0.110.0/24

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

Check an IP address →

Detect it in code

Spot AS18328 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 AS18328

Is AS18328 a datacenter or VPN network?

AS18328 (Dotname Korea Corp) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS18328?

AS18328 is registered to Dotname Korea Corp. It announces about 16,384 IPv4 addresses.

How do I detect traffic from AS18328?

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.