Network check
ASN
AS37421
- OwnerCellulant LTD
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses4,096
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS37421
AS37421 Cellulant LTD
AS37421 (Cellulant LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS37421 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 AS37421
Is AS37421 a datacenter or VPN network?
AS37421 (Cellulant LTD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS37421?
AS37421 is registered to Cellulant LTD. It announces about 4,096 IPv4 addresses.
How do I detect traffic from AS37421?
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.