Network check
ASN
AS3748
- OwnerElectronics and Telecommunications Res
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses65,536
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS3748
AS3748 Electronics and Telecommunications Research Institute
AS3748 (Electronics and Telecommunications Research Institute) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS3748 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 AS3748
Is AS3748 a datacenter or VPN network?
AS3748 (Electronics and Telecommunications Research Institute) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS3748?
AS3748 is registered to Electronics and Telecommunications Research Institute. It announces about 65,536 IPv4 addresses.
How do I detect traffic from AS3748?
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.