Network check
ASN
AS51203
- OwnerBM5 Bartosz Malinowski
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses512
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS51203
AS51203 BM5 Bartosz Malinowski
AS51203 (BM5 Bartosz Malinowski) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS51203 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 AS51203
Is AS51203 a datacenter or VPN network?
AS51203 (BM5 Bartosz Malinowski) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS51203?
AS51203 is registered to BM5 Bartosz Malinowski. It announces about 512 IPv4 addresses.
How do I detect traffic from AS51203?
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.