Network check
ASN
AS2021
- OwnerUnisys Corporation
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses512
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS2021
AS2021 Unisys Corporation
AS2021 (Unisys Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS2021 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 AS2021
Is AS2021 a datacenter or VPN network?
AS2021 (Unisys Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS2021?
AS2021 is registered to Unisys Corporation. It announces about 512 IPv4 addresses.
How do I detect traffic from AS2021?
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.