Network · AS53166

AS53166 UNIVERSIDADE ESTADUAL PAULISTA

AS53166 (UNIVERSIDADE ESTADUAL PAULISTA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS53166

OwnerUNIVERSIDADE ESTADUAL PAULISTA
KindInternet service provider
Servers, not peopleno
IPv4 addresses131,072
IPv4 ranges2
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

200.145.0.0/16
186.217.0.0/16

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

Check an IP address →

Detect it in code

Spot AS53166 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 AS53166

Is AS53166 a datacenter or VPN network?

AS53166 (UNIVERSIDADE ESTADUAL PAULISTA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS53166?

AS53166 is registered to UNIVERSIDADE ESTADUAL PAULISTA. It announces about 131,072 IPv4 addresses.

How do I detect traffic from AS53166?

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.