Network · AS138581

AS138581 Britto Network

AS138581 (Britto Network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS138581

  • OwnerBritto Network
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses256
  • IPv4 ranges1
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 103.133.205.0/24

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

Check an IP address →

Detect it in code

Spot AS138581 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 AS138581

Is AS138581 a datacenter or VPN network?

AS138581 (Britto Network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS138581?

AS138581 is registered to Britto Network. It announces about 256 IPv4 addresses.

How do I detect traffic from AS138581?

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.