Network · AS271573

AS271573 Arthson Almeida Informática Ltda.

AS271573 (Arthson Almeida Informática Ltda.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS271573

OwnerArthson Almeida Informática Ltda.
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,024
IPv4 ranges3
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

200.6.134.0/23
201.131.106.0/24
200.0.179.0/24

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

Check an IP address →

Detect it in code

Spot AS271573 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 AS271573

Is AS271573 a datacenter or VPN network?

AS271573 (Arthson Almeida Informática Ltda.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS271573?

AS271573 is registered to Arthson Almeida Informática Ltda.. It announces about 1,024 IPv4 addresses.

How do I detect traffic from AS271573?

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.