Network · AS8405

AS8405 PE Sontheimer Bernd

AS8405 (PE Sontheimer Bernd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS8405

OwnerPE Sontheimer Bernd
KindInternet service provider
Servers, not peopleno
IPv4 addresses10,496
IPv4 ranges9
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

217.140.80.0/20
217.140.72.0/21
5.252.124.0/22
45.87.16.0/22
185.218.168.0/22
193.188.154.0/23
193.36.42.0/24
193.36.3.0/24
193.35.216.0/24

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

Check an IP address →

Detect it in code

Spot AS8405 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 AS8405

Is AS8405 a datacenter or VPN network?

AS8405 (PE Sontheimer Bernd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS8405?

AS8405 is registered to PE Sontheimer Bernd. It announces about 10,496 IPv4 addresses.

How do I detect traffic from AS8405?

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.