Network · AS2578

AS2578 Demos, Moscow, Russia

AS2578 (Demos, Moscow, Russia) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS2578

OwnerDemos, Moscow, Russia
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,024
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

153.56.137.0/24
145.249.108.0/24
138.124.179.0/24
131.222.129.0/24

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

Check an IP address →

Detect it in code

Spot AS2578 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 AS2578

Is AS2578 a datacenter or VPN network?

AS2578 (Demos, Moscow, Russia) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS2578?

AS2578 is registered to Demos, Moscow, Russia. It announces about 1,024 IPv4 addresses.

How do I detect traffic from AS2578?

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.