Network · AS266387

AS266387 World Fast Telecomunicacoes ME

AS266387 (World Fast Telecomunicacoes ME) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS266387

OwnerWorld Fast Telecomunicacoes ME
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges2
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

191.37.140.0/22
170.81.20.0/22

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

Check an IP address →

Detect it in code

Spot AS266387 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 AS266387

Is AS266387 a datacenter or VPN network?

AS266387 (World Fast Telecomunicacoes ME) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS266387?

AS266387 is registered to World Fast Telecomunicacoes ME. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS266387?

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.