Network · AS24349

AS24349 CERNET2 IX at Peking University

AS24349 (CERNET2 IX at Peking University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS24349

OwnerCERNET2 IX at Peking University
KindInternet service provider
Servers, not peopleno
IPv4 addresses130,560
IPv4 ranges16
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

162.105.128.0/17
115.27.0.0/17
162.105.0.0/18
115.27.128.0/18
162.105.64.0/19
115.27.192.0/19
162.105.96.0/20
115.27.224.0/20
162.105.112.0/21
115.27.240.0/21
162.105.124.0/22
115.27.248.0/22

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

Check an IP address →

Detect it in code

Spot AS24349 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 AS24349

Is AS24349 a datacenter or VPN network?

AS24349 (CERNET2 IX at Peking University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS24349?

AS24349 is registered to CERNET2 IX at Peking University. It announces about 130,560 IPv4 addresses.

How do I detect traffic from AS24349?

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.