Network · AS17789

AS17789 CNCGROUP IP network of ShangHai IDC

AS17789 (CNCGROUP IP network of ShangHai IDC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17789

OwnerCNCGROUP IP network of ShangHai IDC
KindInternet service provider
Servers, not peopleno
IPv4 addresses65,280
IPv4 ranges8
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

27.99.128.0/17
42.0.128.0/18
42.0.224.0/19
42.0.208.0/20
42.0.192.0/21
42.0.204.0/22
42.0.202.0/23
42.0.201.0/24

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

Check an IP address →

Detect it in code

Spot AS17789 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 AS17789

Is AS17789 a datacenter or VPN network?

AS17789 (CNCGROUP IP network of ShangHai IDC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17789?

AS17789 is registered to CNCGROUP IP network of ShangHai IDC. It announces about 65,280 IPv4 addresses.

How do I detect traffic from AS17789?

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.