Network · AS24348

AS24348 CERNET2 IX at Tsinghua University

AS24348 (CERNET2 IX at Tsinghua University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS24348

OwnerCERNET2 IX at Tsinghua University
KindInternet service provider
Servers, not peopleno
IPv4 addresses16,896
IPv4 ranges3
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

58.206.192.0/18
202.112.61.0/24
202.112.0.0/24

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

Check an IP address →

Detect it in code

Spot AS24348 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 AS24348

Is AS24348 a datacenter or VPN network?

AS24348 (CERNET2 IX at Tsinghua University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS24348?

AS24348 is registered to CERNET2 IX at Tsinghua University. It announces about 16,896 IPv4 addresses.

How do I detect traffic from AS24348?

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.