Network · AS25251

AS25251 Alpha Online Ltd

AS25251 (Alpha Online Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS25251

  • OwnerAlpha Online Ltd
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses2,560
  • IPv4 ranges6
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 81.94.44.0/22
  • 81.94.32.0/23
  • 81.94.42.0/24
  • 81.94.39.0/24
  • 81.94.37.0/24
  • 81.94.35.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS25251 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 AS25251

Is AS25251 a datacenter or VPN network?

AS25251 (Alpha Online Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS25251?

AS25251 is registered to Alpha Online Ltd. It announces about 2,560 IPv4 addresses.

How do I detect traffic from AS25251?

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.