Network · AS48539

AS48539 Bifrost Systems OU

AS48539 (Bifrost Systems OU) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS48539

  • OwnerBifrost Systems OU
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses9,216
  • IPv4 ranges32
  • IPv6 ranges4
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 45.85.122.0/23
  • 213.239.152.0/23
  • 188.244.96.0/23
  • 185.209.86.0/23
  • 91.226.57.0/24
  • 89.28.207.0/24
  • 89.251.31.0/24
  • 89.21.84.0/24
  • 87.192.81.0/24
  • 79.98.39.0/24
  • 5.252.156.0/24
  • 45.85.120.0/24

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

Check an IP address →

Detect it in code

Spot AS48539 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 AS48539

Is AS48539 a datacenter or VPN network?

AS48539 (Bifrost Systems OU) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS48539?

AS48539 is registered to Bifrost Systems OU. It announces about 9,216 IPv4 addresses.

How do I detect traffic from AS48539?

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.