Network · AS18186

AS18186 FSC NETWORK LTD

AS18186 (FSC NETWORK LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS18186

  • OwnerFSC NETWORK LTD
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses238,848
  • IPv4 ranges114
  • IPv6 ranges10
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 207.57.0.0/18
  • 38.182.224.0/19
  • 207.56.64.0/19
  • 207.56.32.0/19
  • 207.56.224.0/19
  • 206.119.96.0/19
  • 206.119.0.0/19
  • 154.39.96.0/19
  • 154.31.224.0/19
  • 154.31.160.0/19
  • 154.23.128.0/19
  • 154.19.192.0/19

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

Check an IP address →

Detect it in code

Spot AS18186 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 AS18186

Is AS18186 a datacenter or VPN network?

AS18186 (FSC NETWORK LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS18186?

AS18186 is registered to FSC NETWORK LTD. It announces about 238,848 IPv4 addresses.

How do I detect traffic from AS18186?

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.