Network · AS265100

AS265100 FSI Telecomunicacoes LTDA

AS265100 (FSI Telecomunicacoes LTDA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS265100

  • OwnerFSI Telecomunicacoes LTDA
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses1,024
  • IPv4 ranges1
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 170.254.80.0/22

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

Check an IP address →

Detect it in code

Spot AS265100 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 AS265100

Is AS265100 a datacenter or VPN network?

AS265100 (FSI Telecomunicacoes LTDA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS265100?

AS265100 is registered to FSI Telecomunicacoes LTDA. It announces about 1,024 IPv4 addresses.

How do I detect traffic from AS265100?

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.