Network · AS45

AS45 Lawrence Livermore National Laboratory

AS45 (Lawrence Livermore National Laboratory) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS45

OwnerLawrence Livermore National Laboratory
KindInternet service provider
Servers, not peopleno
IPv4 addresses175,104
IPv4 ranges16
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

128.15.0.0/16
128.115.0.0/16
134.9.128.0/18
134.9.96.0/19
134.9.192.0/19
134.9.224.0/20
134.9.88.0/21
134.9.240.0/21
134.9.248.0/22
134.9.252.0/23
192.5.99.0/24
192.188.35.0/24

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

Check an IP address →

Detect it in code

Spot AS45 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 AS45

Is AS45 a datacenter or VPN network?

AS45 (Lawrence Livermore National Laboratory) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS45?

AS45 is registered to Lawrence Livermore National Laboratory. It announces about 175,104 IPv4 addresses.

How do I detect traffic from AS45?

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.