Network · AS394621

AS394621 Stack41, llc.

AS394621 (Stack41, llc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS394621

OwnerStack41, llc.
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,304
IPv4 ranges6
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

161.38.16.0/22
50.227.99.0/24
207.166.139.0/24
162.223.125.0/24
148.59.37.0/24
148.59.133.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS394621 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 AS394621

Is AS394621 a datacenter or VPN network?

AS394621 (Stack41, llc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS394621?

AS394621 is registered to Stack41, llc.. It announces about 2,304 IPv4 addresses.

How do I detect traffic from AS394621?

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.