AS48572 — AIRPORT-CGN-AS Flughafen Koeln/Bonn GmbH

AS48572 announces 2 IPv4 prefixes covering 512 addresses and 1 IPv6 prefixes.

About this network

AIRPORT-CGN-AS is operated by Flughafen Koeln/Bonn GmbH.

What it's used for

• The address space carries internal airport infrastructure, identified by the netname AIRPORT-CGN on both announced IPv4 prefixes.
• The AS announces 512 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, self-contained site network rather than a transit or access provider.
• Traffic from this AS consists of internal corporate and operational systems for the airport, including terminal operations, cargo handling, and facility management.

Notable

• Registrants for both IPv4 prefixes match the AS holder, Flughafen Koeln/Bonn GmbH, confirming direct ownership of the address space.
• The address inventory is compact, consisting of two /24 IPv4 blocks and a single /29 IPv6 prefix, typical of a single-site corporate estate.

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

Announced prefixes

• 91.209.121.0/24
• 194.110.25.0/24
• 2a09:bc80::/29

Upstream networks

• AS8422 NetCologne Gesellschaft fur Telekommunikation mbH

Adjacent networks

• AS8422 NetCologne Gesellschaft fur Telekommunikation mbH

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 67% of announcements registered; 2 route objects.
• Listed in as-sets: AS-NETCOLOGNE, AS-RETN, AS-RETN-ACTUAL-V4, AS-RETN6.