Network · AS4811

AS4811 China Telecom (Group)

AS4811 (China Telecom (Group)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS4811

OwnerChina Telecom (Group)
KindInternet service provider
Servers, not peopleno
IPv4 addresses696,576
IPv4 ranges481
IPv6 ranges3

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

101.91.0.0/17
101.227.0.0/17
218.78.0.0/18
101.91.128.0/18
61.171.64.0/19
61.171.0.0/19
222.73.64.0/19
218.78.64.0/19
180.163.64.0/19
180.163.224.0/19
180.163.0.0/19
180.153.0.0/19

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

Check an IP address →

Detect it in code

Spot AS4811 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 AS4811

Is AS4811 a datacenter or VPN network?

AS4811 (China Telecom (Group)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS4811?

AS4811 is registered to China Telecom (Group). It announces about 696,576 IPv4 addresses.

How do I detect traffic from AS4811?

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.