Network · AS2546

AS2546 National Center of Scientific Research DEMOKRITOS

AS2546 (National Center of Scientific Research DEMOKRITOS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS2546

OwnerNational Center of Scientific Research
KindInternet service provider
Servers, not peopleno
IPv4 addresses62,976
IPv4 ranges18
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

143.233.0.0/18
143.233.96.0/19
143.233.224.0/19
143.233.128.0/19
143.233.80.0/20
143.233.208.0/20
143.233.160.0/20
143.233.72.0/21
143.233.192.0/21
143.233.64.0/22
143.233.200.0/22
143.233.176.0/22

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

Check an IP address →

Detect it in code

Spot AS2546 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 AS2546

Is AS2546 a datacenter or VPN network?

AS2546 (National Center of Scientific Research DEMOKRITOS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS2546?

AS2546 is registered to National Center of Scientific Research DEMOKRITOS. It announces about 62,976 IPv4 addresses.

How do I detect traffic from AS2546?

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.