Network · AS28637

AS28637 Cia Proc. de Dados do Estado de S Paulo - Prodesp

AS28637 (Cia Proc. de Dados do Estado de S Paulo - Prodesp) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS28637

  • OwnerCia Proc. de Dados do Estado de S Paul
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses24,576
  • IPv4 ranges2
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 201.55.0.0/18
  • 200.144.0.0/19

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

Check an IP address →

Detect it in code

Spot AS28637 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 AS28637

Is AS28637 a datacenter or VPN network?

AS28637 (Cia Proc. de Dados do Estado de S Paulo - Prodesp) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS28637?

AS28637 is registered to Cia Proc. de Dados do Estado de S Paulo - Prodesp. It announces about 24,576 IPv4 addresses.

How do I detect traffic from AS28637?

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.