Network check
ASN
AS203901
- OwnerATLANTIC SYSTEMES SARL
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS203901
AS203901 ATLANTIC SYSTEMES SARL
AS203901 (ATLANTIC SYSTEMES SARL) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS203901 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 AS203901
Is AS203901 a datacenter or VPN network?
AS203901 (ATLANTIC SYSTEMES SARL) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS203901?
AS203901 is registered to ATLANTIC SYSTEMES SARL. It announces about 256 IPv4 addresses.
How do I detect traffic from AS203901?
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.