Network check
ASN
AS31240
- OwnerCitytelecom LLC
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS31240
AS31240 Citytelecom LLC
AS31240 (Citytelecom LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS31240 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 AS31240
Is AS31240 a datacenter or VPN network?
AS31240 (Citytelecom LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS31240?
AS31240 is registered to Citytelecom LLC. It announces about 256 IPv4 addresses.
How do I detect traffic from AS31240?
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.