AS5520 — UNI-KOELN

Network type: education

AS5520 announces 6 IPv4 prefixes covering 68,096 addresses and 1 IPv6 prefixes.

About this network

UNI-KOELN is the Universitaet zu Koeln, the University of Cologne, one of Germany's largest and oldest universities. The AS carries the university's campus network.

What it's used for

• Campus networking for students, staff, faculties and the university's computing centre, plus research systems and institutional services.
• Roughly 68,000 IPv4 addresses, the sort of allocation a major German university received before address scarcity set in.

Notable

• This is a university network, not an ISP. The address space serves the institution's own people and machines, and its upstream is the German research and education networking world rather than a commercial carrier.
• German universities were early and generous recipients of address space, which is why a single campus can hold more IPv4 than many commercial providers.

Interesting

• The University of Cologne traces to 1388, making it one of the oldest universities in Central Europe. Its network is a good reminder that a lot of the early European internet was built out of university computing centres.

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

Announced prefixes

• 134.95.0.0/16
• 134.107.209.0/24
• 134.107.216.0/23
• 134.107.225.0/24
• 134.107.226.0/23
• 185.240.116.0/22
• 2a00:a200::/29

Upstream networks

• AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Adjacent networks

• AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.