Network check
ASN
AS57521
- OwnerSimplysoft GmbH
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges2
Risk score0
Nothing suspicious found.
Network · AS57521
AS57521 Simplysoft GmbH
AS57521 (Simplysoft GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS57521 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 AS57521
Is AS57521 a datacenter or VPN network?
AS57521 (Simplysoft GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS57521?
AS57521 is registered to Simplysoft GmbH. It announces about 256 IPv4 addresses.
How do I detect traffic from AS57521?
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.