Network · AS15743

AS15743 net.de AG

AS15743 (net.de AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS15743

  • Ownernet.de AG
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses18,176
  • IPv4 ranges16
  • IPv6 ranges2
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 62.48.64.0/19
  • 37.131.240.0/21
  • 217.26.224.0/21
  • 192.166.176.0/21
  • 193.35.218.0/23
  • 193.35.198.0/23
  • 193.141.98.0/23
  • 94.100.135.0/24
  • 193.99.145.0/24
  • 193.98.1.0/24
  • 193.96.28.0/24
  • 193.186.12.0/24

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

Check an IP address →

Detect it in code

Spot AS15743 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 AS15743

Is AS15743 a datacenter or VPN network?

AS15743 (net.de AG) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS15743?

AS15743 is registered to net.de AG. It announces about 18,176 IPv4 addresses.

How do I detect traffic from AS15743?

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.