Network · AS34878

AS34878 Karlsruhe Institute of Technology

AS34878 (Karlsruhe Institute of Technology) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS34878

OwnerKarlsruhe Institute of Technology
KindInternet service provider
Servers, not peopleno
IPv4 addresses200,704
IPv4 ranges4
IPv6 ranges5

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

141.52.0.0/16
141.3.0.0/16
129.13.0.0/16
193.196.32.0/20

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

Check an IP address →

Detect it in code

Spot AS34878 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 AS34878

Is AS34878 a datacenter or VPN network?

AS34878 (Karlsruhe Institute of Technology) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS34878?

AS34878 is registered to Karlsruhe Institute of Technology. It announces about 200,704 IPv4 addresses.

How do I detect traffic from AS34878?

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.