Network check
ASN
AS21124
- OwnermailXpert GmbH
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS21124
AS21124 mailXpert GmbH
AS21124 (mailXpert GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS21124 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 AS21124
Is AS21124 a datacenter or VPN network?
AS21124 (mailXpert GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS21124?
AS21124 is registered to mailXpert GmbH. It announces about 256 IPv4 addresses.
How do I detect traffic from AS21124?
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.