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Autonomous System

AS45

Lawrence Livermore National Laboratory

Announced IPs
175,104
CIDR prefixes
16
ASN
AS45

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Enterprise allocation +4
  • Trust score 69 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

About Lawrence Livermore National Laboratory

Lawrence Livermore National Laboratory (LLNL) is a federally funded research and development center in Livermore, California, United States. Established in 1952, the laboratory is sponsored by the United States Department of Energy and administered privately by Lawrence Livermore National Security, LLC.

Founded
1952
Headquarters
Livermore
Parent
United States Department of Energy
Employees
9,563

Network profile

Source: PeeringDB →
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Open

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS45 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
134.9.254.0/24 6,859 2026-07-18 10:51:59
192.188.35.0/24 4,755 2026-07-18 10:51:59
134.9.88.0/21 4,095 2026-07-18 10:51:59
192.12.17.0/24 4,087 2026-07-18 10:51:59
134.9.96.0/19 4,081 2026-07-18 10:51:59
192.5.99.0/24 4,040 2026-07-18 10:51:59
192.12.134.0/24 4,004 2026-07-18 10:51:59
192.12.133.0/24 3,996 2026-07-18 10:51:59
134.9.128.0/17 3,969 2026-07-18 10:51:59
128.15.0.0/16 3,953 2026-07-18 10:51:59
128.115.0.0/16 3,949 2026-07-18 10:51:59

Frequently Asked Questions

What is AS45?

AS45 is an Autonomous System Number assigned to Lawrence Livermore National Laboratory. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS45 announce?

AS45 announces 175.1K IPv4 addresses distributed across 16 routed CIDR prefixes. The network is registered in United States.

Who operates AS45?

AS45 is operated by Lawrence Livermore National Laboratory. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS45 registered in?

AS45 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 11:25:31 UTC
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