Network · AS38103

AS38103 SK Broadband Co Ltd

AS38103 (SK Broadband Co Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS38103

OwnerSK Broadband Co Ltd
KindInternet service provider
Servers, not peopleno
IPv4 addresses97,536
IPv4 ranges9
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

123.254.128.0/17
123.109.128.0/18
115.161.128.0/18
112.212.128.0/18
223.131.128.0/19
223.131.160.0/20
223.131.176.0/21
223.131.184.0/22
203.229.35.0/24

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

Check an IP address →

Detect it in code

Spot AS38103 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 AS38103

Is AS38103 a datacenter or VPN network?

AS38103 (SK Broadband Co Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS38103?

AS38103 is registered to SK Broadband Co Ltd. It announces about 97,536 IPv4 addresses.

How do I detect traffic from AS38103?

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.