Network · AS133119

AS133119 China Unicom IP network

AS133119 (China Unicom IP network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS133119

OwnerChina Unicom IP network
KindInternet service provider
Servers, not peopleno
IPv4 addresses167,936
IPv4 ranges26
IPv6 ranges3

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

116.181.0.0/16
120.52.128.0/17
120.52.64.0/18
123.58.96.0/19
120.52.32.0/19
123.58.240.0/20
123.58.0.0/20
120.52.0.0/20
120.133.80.0/20
110.43.160.0/20
220.192.72.0/21
120.52.16.0/21

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

Check an IP address →

Detect it in code

Spot AS133119 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 AS133119

Is AS133119 a datacenter or VPN network?

AS133119 (China Unicom IP network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS133119?

AS133119 is registered to China Unicom IP network. It announces about 167,936 IPv4 addresses.

How do I detect traffic from AS133119?

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.