Network · AS56403

AS56403 QUADRIA SA

AS56403 (QUADRIA SA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS56403

OwnerQUADRIA SA
KindInternet service provider
Servers, not peopleno
IPv4 addresses3,072
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

46.235.16.0/21
185.194.128.0/22

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

Check an IP address →

Detect it in code

Spot AS56403 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 AS56403

Is AS56403 a datacenter or VPN network?

AS56403 (QUADRIA SA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS56403?

AS56403 is registered to QUADRIA SA. It announces about 3,072 IPv4 addresses.

How do I detect traffic from AS56403?

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.