Network · AS377

AS377 Sandia National Laboratories

AS377 (Sandia National Laboratories) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS377

  • OwnerSandia National Laboratories
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses137,728
  • IPv4 ranges9
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 134.253.0.0/16
  • 132.175.0.0/16
  • 205.137.80.0/20
  • 198.102.152.0/22
  • 198.178.168.0/23
  • 198.206.223.0/24
  • 198.178.170.0/24
  • 198.102.151.0/24
  • 192.160.227.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS377 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 AS377

Is AS377 a datacenter or VPN network?

AS377 (Sandia National Laboratories) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS377?

AS377 is registered to Sandia National Laboratories. It announces about 137,728 IPv4 addresses.

How do I detect traffic from AS377?

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.