Network check
ASN
AS401977
- OwnerSierra Nevada Communications
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS401977
AS401977 Sierra Nevada Communications
AS401977 (Sierra Nevada Communications) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS401977 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 AS401977
Is AS401977 a datacenter or VPN network?
AS401977 (Sierra Nevada Communications) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS401977?
AS401977 is registered to Sierra Nevada Communications. It announces about 256 IPv4 addresses.
How do I detect traffic from AS401977?
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.