Network · AS28670

AS28670 CST SERVIÇOS DE INFORMÁTICA E CALL CENTER LTDA.

AS28670 (CST SERVIÇOS DE INFORMÁTICA E CALL CENTER LTDA.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS28670

OwnerCST SERVIÇOS DE INFORMÁTICA E CALL CEN
KindInternet service provider
Servers, not peopleno
IPv4 addresses5,376
IPv4 ranges3
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

189.8.96.0/20
138.94.220.0/22
131.72.146.0/24

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

Check an IP address →

Detect it in code

Spot AS28670 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 AS28670

Is AS28670 a datacenter or VPN network?

AS28670 (CST SERVIÇOS DE INFORMÁTICA E CALL CENTER LTDA.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS28670?

AS28670 is registered to CST SERVIÇOS DE INFORMÁTICA E CALL CENTER LTDA.. It announces about 5,376 IPv4 addresses.

How do I detect traffic from AS28670?

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.