AS35704 — ITZBUND

AS35704 announces 1 IPv4 prefixes covering 4,096 addresses and 1 IPv6 prefixes.

About this network

The AS handle ITZBUND is operated by ITZBund (Informationstechnikzentrum Bund).

What it's used for

• The address space carries federal government IT infrastructure, evidenced by the reverse DNS record sec.gss.bmwk.bund.de and netnames like ITZBUND-NET-1.
• The AS announces 4096 IPv4 addresses across 7 prefixes and 11 IPv6 prefixes, while maintaining 85 observed neighbours; this ratio of moderate address space to high connectivity suggests a central hub role for federal data exchange rather than a simple access network.

Notable

• All registrants for the announced IPv4 prefixes are listed as "ITZBund LIR Administration Team; Abuse-C Role", which aligns perfectly with the AS holder.
• ITZBund serves as the central IT service provider for the German Federal Government, managing critical processes for ministries including transport, budget, and internal security.
• The inventory consists of a contiguous block of /22 and /23 prefixes in the 80.245.144.0/20 range, alongside a large, finely subdivided IPv6 allocation starting at 2a09:1480::/39.

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

Announced prefixes

• 80.245.144.0/20
• 2a09:1480::/29

Upstream networks

• AS3320 Deutsche Telekom AG
• AS8220 COLT Technology Services Group Limited
• AS19905 Vercara, LLC
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS37100 SEACOM Limited
• AS37721 Virtual Technologies & Solutions
• AS48362 Stadtwerke Feldkirch
• AS212024 Marc Schmitt
• AS6797 GlobalConnect AB
• AS12779 IT.Gate S.p.A.
• AS20485 Joint Stock Company TransTeleCom
• AS24482 SG.GS
• AS34019 Hivane Association

Adjacent networks

• AS3320 Deutsche Telekom AG
• AS8220 COLT Technology Services Group Limited
• AS19905 Vercara, LLC
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS20485 Joint Stock Company TransTeleCom
• AS12779 IT.Gate S.p.A.
• AS48362 Stadtwerke Feldkirch
• AS34019 Hivane Association
• AS37721 Virtual Technologies & Solutions
• AS212024 Marc Schmitt
• AS24482 SG.GS
• AS37100 SEACOM Limited
• AS6797 GlobalConnect AB

Routing security

• RPKI: 12 valid, 0 invalid and 0 not-found announcements; 53 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 19 route objects.
• Listed in as-sets: AS-UDOS, AS3320:AS-DTAG, AS3320:AS-DTAG-V6, AS35704:AS-ITZBUND, AS6695:AS-DECIX-FRA-CONNECTED, AS6695:AS-DECIX-FRA-RS, AS6695:AS-DECIX-FRA-RS-V6, AS8220:AS-COLTDE.

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany