Network · AS11921

AS11921 SECRELNET INFORMATICA LTDA

AS11921 (SECRELNET INFORMATICA LTDA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS11921

OwnerSECRELNET INFORMATICA LTDA
KindInternet service provider
Servers, not peopleno
IPv4 addresses28,672
IPv4 ranges4
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

201.49.0.0/18
200.233.64.0/20
200.194.96.0/20
200.150.128.0/20

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

Check an IP address →

Detect it in code

Spot AS11921 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 AS11921

Is AS11921 a datacenter or VPN network?

AS11921 (SECRELNET INFORMATICA LTDA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS11921?

AS11921 is registered to SECRELNET INFORMATICA LTDA. It announces about 28,672 IPv4 addresses.

How do I detect traffic from AS11921?

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.