AS513 — CERN

AS513 announces 19 IPv4 prefixes covering 354,816 addresses and 1 IPv6 prefixes.

About this network

CERN, the European Organization for Nuclear Research, near Geneva, Switzerland, on one of the internet's early low-numbered ASNs.

What it's used for

• Networking for the world's largest particle-physics laboratory — the Large Hadron Collider, experiments, and the researchers and data behind them.

Notable

• A major research institution's own network, not a commercial ISP.
• The low AS number reflects an early-internet allocation, handed out roughly sequentially in the internet's first years.

Interesting

• The World Wide Web was invented at CERN by Tim Berners-Lee around 1989-1991.

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

Announced prefixes

• 128.141.0.0/16
• 128.142.0.0/16
• 137.138.0.0/16
• 185.249.56.0/22
• 188.184.0.0/15
• 192.16.155.0/24
• 192.16.156.0/22
• 192.16.160.0/22
• 192.16.164.0/23
• 192.16.166.0/24
• 192.65.183.0/24
• 192.65.184.0/21
• 192.65.192.0/22
• 192.65.196.0/23
• 192.91.236.0/22
• 192.91.240.0/22
• 192.91.244.0/23
• 192.91.246.0/24
• 194.12.128.0/18
• 2001:1458::/31

Upstream networks

• AS25091 IP-Max SA
• AS21320 GEANT Vereniging
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS29222 Infomaniak Network SA
• AS20965 GEANT Vereniging
• AS6730 Sunrise GmbH
• AS1103 SURF B.V.
• AS293 ESnet

Downstream networks

• AS48751 United Nations Logistics Base
• AS20940 Akamai International B.V.
• AS28810 World Health Organization (WHO)
• AS21449 Etat de Geneve
• AS12654 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS25152 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)

Adjacent networks

• AS25091 IP-Max SA
• AS21320 GEANT Vereniging
• AS29222 Infomaniak Network SA
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS48751 United Nations Logistics Base
• AS20940 Akamai International B.V.
• AS20965 GEANT Vereniging
• AS28810 World Health Organization (WHO)
• AS6730 Sunrise GmbH
• AS21449 Etat de Geneve
• AS293 ESnet
• AS1103 SURF B.V.
• AS12654 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS25152 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)

Internet exchanges

• CERN IXP / Equinix Internet Exchange Geneva — Geneva, Switzerland