Network · AS25231

AS25231 State Budget Enterprise of Novosibirsk region "Novosibirsk region center of inf

AS25231 (State Budget Enterprise of Novosibirsk region "Novosibirsk region center of inf) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS25231

  • OwnerState Budget Enterprise of Novosibirsk
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses2,048
  • IPv4 ranges4
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 185.180.212.0/22
  • 185.138.130.0/23
  • 195.208.191.0/24
  • 185.138.129.0/24

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

Check an IP address →

Detect it in code

Spot AS25231 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 AS25231

Is AS25231 a datacenter or VPN network?

AS25231 (State Budget Enterprise of Novosibirsk region "Novosibirsk region center of inf) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS25231?

AS25231 is registered to State Budget Enterprise of Novosibirsk region "Novosibirsk region center of inf. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS25231?

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.