Network · AS11904

AS11904 AcenTek

AS11904 (AcenTek) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS11904

OwnerAcenTek
KindInternet service provider
Servers, not peopleno
IPv4 addresses19,456
IPv4 ranges5
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

24.204.160.0/19
209.25.240.0/20
107.155.176.0/20
198.167.240.0/21
104.192.148.0/22

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

Check an IP address →

Detect it in code

Spot AS11904 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 AS11904

Is AS11904 a datacenter or VPN network?

AS11904 (AcenTek) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS11904?

AS11904 is registered to AcenTek. It announces about 19,456 IPv4 addresses.

How do I detect traffic from AS11904?

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.