Network · AS21904

AS21904 PowerOne

AS21904 (PowerOne) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21904

OwnerPowerOne
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges5
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

204.15.136.0/22
68.64.106.0/24
68.64.105.0/24
208.82.26.0/24
204.15.142.0/24

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

Check an IP address →

Detect it in code

Spot AS21904 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 AS21904

Is AS21904 a datacenter or VPN network?

AS21904 (PowerOne) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21904?

AS21904 is registered to PowerOne. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS21904?

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.