Network · AS51571

AS51571 Alpit Nordic Oy

AS51571 (Alpit Nordic Oy) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51571

OwnerAlpit Nordic Oy
KindInternet service provider
Servers, not peopleno
IPv4 addresses512
IPv4 ranges2
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

195.64.102.0/24
149.5.242.0/24

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

Check an IP address →

Detect it in code

Spot AS51571 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 AS51571

Is AS51571 a datacenter or VPN network?

AS51571 (Alpit Nordic Oy) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51571?

AS51571 is registered to Alpit Nordic Oy. It announces about 512 IPv4 addresses.

How do I detect traffic from AS51571?

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.