Network · AS45399

AS45399 Hanjin Information Systems Telecommunication Co., Ltd

AS45399 (Hanjin Information Systems Telecommunication Co., Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS45399

  • OwnerHanjin Information Systems Telecommu
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses5,120
  • IPv4 ranges15
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 168.126.80.0/22
  • 203.251.152.0/23
  • 121.190.208.0/23
  • 59.15.10.0/24
  • 58.226.213.0/24
  • 219.251.140.0/24
  • 211.210.94.0/24
  • 211.210.89.0/24
  • 211.206.114.0/24
  • 210.180.126.0/24
  • 203.251.154.0/24
  • 203.251.151.0/24

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

Check an IP address →

Detect it in code

Spot AS45399 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 AS45399

Is AS45399 a datacenter or VPN network?

AS45399 (Hanjin Information Systems Telecommunication Co., Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS45399?

AS45399 is registered to Hanjin Information Systems Telecommunication Co., Ltd. It announces about 5,120 IPv4 addresses.

How do I detect traffic from AS45399?

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.