Network · AS5533

AS5533 Claranet Portugal S.A

AS5533 (Claranet Portugal S.A) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS5533

OwnerClaranet Portugal S.A
KindInternet service provider
Servers, not peopleno
IPv4 addresses81,664
IPv4 ranges9
IPv6 ranges4

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

80.172.0.0/16
195.22.0.0/19
77.91.200.0/21
188.93.224.0/21
195.72.136.0/22
194.62.240.0/22
185.146.92.0/22
193.227.238.0/23
195.35.66.0/24

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

Check an IP address →

Detect it in code

Spot AS5533 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 AS5533

Is AS5533 a datacenter or VPN network?

AS5533 (Claranet Portugal S.A) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS5533?

AS5533 is registered to Claranet Portugal S.A. It announces about 81,664 IPv4 addresses.

How do I detect traffic from AS5533?

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.