Network · AS23851

AS23851 CHONGQING CNC BROADBAND NETWORKS CO.,LTD

AS23851 (CHONGQING CNC BROADBAND NETWORKS CO.,LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS23851

OwnerCHONGQING CNC BROADBAND NETWORKS CO.,L
KindInternet service provider
Servers, not peopleno
IPv4 addresses256
IPv4 ranges1
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

211.158.25.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS23851 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 AS23851

Is AS23851 a datacenter or VPN network?

AS23851 (CHONGQING CNC BROADBAND NETWORKS CO.,LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS23851?

AS23851 is registered to CHONGQING CNC BROADBAND NETWORKS CO.,LTD. It announces about 256 IPv4 addresses.

How do I detect traffic from AS23851?

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.