Network · AS51728

AS51728 Seltimil Oy

AS51728 (Seltimil Oy) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51728

OwnerSeltimil Oy
KindInternet service provider
Servers, not peopleno
IPv4 addresses8,192
IPv4 ranges4
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

80.66.160.0/20
91.190.192.0/21
185.40.88.0/22
146.66.24.0/22

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

Check an IP address →

Detect it in code

Spot AS51728 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 AS51728

Is AS51728 a datacenter or VPN network?

AS51728 (Seltimil Oy) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51728?

AS51728 is registered to Seltimil Oy. It announces about 8,192 IPv4 addresses.

How do I detect traffic from AS51728?

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.