Network · AS18033

AS18033 CMB TAEGU BROADCASTING

AS18033 (CMB TAEGU BROADCASTING) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS18033

OwnerCMB TAEGU BROADCASTING
KindInternet service provider
Servers, not peopleno
IPv4 addresses11,008
IPv4 ranges11
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

203.166.208.0/21
125.62.216.0/21
119.235.240.0/21
49.143.180.0/22
43.241.108.0/22
103.28.60.0/22
49.143.184.0/23
43.241.106.0/23
49.143.186.0/24
43.241.105.0/24
122.129.213.0/24

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

Check an IP address →

Detect it in code

Spot AS18033 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 AS18033

Is AS18033 a datacenter or VPN network?

AS18033 (CMB TAEGU BROADCASTING) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS18033?

AS18033 is registered to CMB TAEGU BROADCASTING. It announces about 11,008 IPv4 addresses.

How do I detect traffic from AS18033?

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.