AS3671 — SLAC

AS3671 announces 2 IPv4 prefixes covering 65,792 addresses and 1 IPv6 prefixes.

About this network

SLAC is the network of the SLAC National Accelerator Laboratory in Menlo Park, California — a US Department of Energy national laboratory operated by Stanford University.

What it's used for

• Research networking for SLAC's particle physics, photon science, and computing programs.
• Moving experimental data: accelerator and light-source facilities generate very large datasets that must be shipped to collaborators and compute sites.

Notable

• National-lab address space is scientific infrastructure — instruments, compute clusters, and data movers — not consumer or commercial hosting.
• SLAC has long been a heavy user of research networking, and its traffic profile looks unlike a normal enterprise: few endpoints, enormous flows.

Interesting

• SLAC ran one of the earliest web servers outside Europe, standing up the first web server in North America in 1991 after contact with CERN.
• A low AS number here reflects how early the DOE laboratory system connected to the internet, well ahead of most commercial networks.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 134.79.0.0/16
• 198.51.111.0/24
• 2620:114:d000::/44

Upstream networks

• AS293 ESnet
• AS46749 Stanford University

Adjacent networks

• AS293 ESnet
• AS46749 Stanford University