Network · AS10099

AS10099 China Unicom (Hong Kong) Operations Limited

AS10099 (China Unicom (Hong Kong) Operations Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS10099

  • OwnerChina Unicom (Hong Kong) Operations Li
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses34,560
  • IPv4 ranges36
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 203.160.64.0/19
  • 202.77.16.0/21
  • 162.219.32.0/21
  • 119.252.136.0/21
  • 46.19.164.0/22
  • 43.255.168.0/22
  • 43.252.84.0/22
  • 43.251.12.0/22
  • 162.255.48.0/22
  • 162.247.4.0/22
  • 162.245.124.0/22
  • 162.219.84.0/22

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

Check an IP address →

Detect it in code

Spot AS10099 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 AS10099

Is AS10099 a datacenter or VPN network?

AS10099 (China Unicom (Hong Kong) Operations Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS10099?

AS10099 is registered to China Unicom (Hong Kong) Operations Limited. It announces about 34,560 IPv4 addresses.

How do I detect traffic from AS10099?

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.