Network · AS23911

AS23911 China Next Generation Internet Beijing IX

AS23911 (China Next Generation Internet Beijing IX) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS23911

  • OwnerChina Next Generation Internet Beijing
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses512
  • IPv4 ranges2
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 210.25.189.0/24
  • 210.25.187.0/24

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

Check an IP address →

Detect it in code

Spot AS23911 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 AS23911

Is AS23911 a datacenter or VPN network?

AS23911 (China Next Generation Internet Beijing IX) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS23911?

AS23911 is registered to China Next Generation Internet Beijing IX. It announces about 512 IPv4 addresses.

How do I detect traffic from AS23911?

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.