Network · AS4158

AS4158 City University of Hong Kong

AS4158 (City University of Hong Kong) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS4158

  • OwnerCity University of Hong Kong
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses82,944
  • IPv4 ranges8
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 144.214.0.0/16
  • 175.159.64.0/19
  • 203.188.80.0/21
  • 202.125.216.0/21
  • 175.159.200.0/21
  • 203.188.88.0/22
  • 202.125.252.0/22
  • 175.159.208.0/22

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

Check an IP address →

Detect it in code

Spot AS4158 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 AS4158

Is AS4158 a datacenter or VPN network?

AS4158 (City University of Hong Kong) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS4158?

AS4158 is registered to City University of Hong Kong. It announces about 82,944 IPv4 addresses.

How do I detect traffic from AS4158?

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.