Network · AS58541

AS58541 Qingdao,266000

AS58541 (Qingdao,266000) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS58541

  • OwnerQingdao,266000
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses81,920
  • IPv4 ranges54
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 150.139.192.0/19
  • 150.138.160.0/19
  • 140.249.192.0/19
  • 140.249.160.0/19
  • 150.138.144.0/20
  • 140.249.32.0/20
  • 211.155.120.0/21
  • 150.138.136.0/21
  • 150.138.112.0/21
  • 150.138.104.0/21
  • 140.249.8.0/21
  • 140.249.48.0/21

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

Check an IP address →

Detect it in code

Spot AS58541 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 AS58541

Is AS58541 a datacenter or VPN network?

AS58541 (Qingdao,266000) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS58541?

AS58541 is registered to Qingdao,266000. It announces about 81,920 IPv4 addresses.

How do I detect traffic from AS58541?

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.