Network · AS40156

AS40156 The Optimal Link Corporation

AS40156 (The Optimal Link Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS40156

  • OwnerThe Optimal Link Corporation
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses11,008
  • IPv4 ranges10
  • IPv6 ranges3
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 66.187.64.0/20
  • 216.230.224.0/20
  • 162.218.228.0/22
  • 38.252.8.0/24
  • 23.189.208.0/24
  • 23.128.116.0/24
  • 195.8.117.0/24
  • 193.202.106.0/24
  • 142.249.221.0/24
  • 139.64.155.0/24

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

Check an IP address →

Detect it in code

Spot AS40156 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 AS40156

Is AS40156 a datacenter or VPN network?

AS40156 (The Optimal Link Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS40156?

AS40156 is registered to The Optimal Link Corporation. It announces about 11,008 IPv4 addresses.

How do I detect traffic from AS40156?

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.