Network · AS213920

AS213920 FONSECA ALVES TECNOLOGIA LTDA

AS213920 (FONSECA ALVES TECNOLOGIA LTDA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS213920

OwnerFONSECA ALVES TECNOLOGIA LTDA
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,536
IPv4 ranges6
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

185.225.22.0/24
185.219.189.0/24
178.132.198.0/24
151.242.25.0/24
151.242.142.0/24
143.20.0.0/24

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

Check an IP address →

Detect it in code

Spot AS213920 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 AS213920

Is AS213920 a datacenter or VPN network?

AS213920 (FONSECA ALVES TECNOLOGIA LTDA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS213920?

AS213920 is registered to FONSECA ALVES TECNOLOGIA LTDA. It announces about 1,536 IPv4 addresses.

How do I detect traffic from AS213920?

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.