Network · AS51941

AS51941 BaseN Oy

AS51941 (BaseN Oy) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51941

OwnerBaseN Oy
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges4
IPv6 ranges4

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

46.183.72.0/22
46.183.76.0/23
46.183.78.0/24
185.128.255.0/24

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

Check an IP address →

Detect it in code

Spot AS51941 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 AS51941

Is AS51941 a datacenter or VPN network?

AS51941 (BaseN Oy) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51941?

AS51941 is registered to BaseN Oy. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS51941?

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.