Network · AS400331

AS400331 Siteaction

AS400331 (Siteaction) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS400331

OwnerSiteaction
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,280
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

104.129.134.0/23
198.144.150.0/24
104.238.235.0/24
104.143.8.0/24

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

Check an IP address →

Detect it in code

Spot AS400331 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 AS400331

Is AS400331 a datacenter or VPN network?

AS400331 (Siteaction) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS400331?

AS400331 is registered to Siteaction. It announces about 1,280 IPv4 addresses.

How do I detect traffic from AS400331?

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.