AS12316 — FITSNET FITS Internet Backbone

AS12316 announces 5 IPv4 prefixes covering 13,824 addresses and 1 IPv6 prefixes.

About this network

FI-TS runs IT infrastructure for German banks, and this AS carries address space belonging to several of them at once.

What it's used for

• Banking infrastructure. Reverse DNS runs under f-i-ts.net and f-i-ts.de, most of it address-derived, with one host answering as cag-mgm-portal.f-i-ts.de.

Notable

• Three separate banks appear as registrants inside this one AS. DE-HELABA-20010417 is registered to Landesbank Hessen-Thüringen Girozentrale, 194.145.146.0/24 is registered as BLB-19990901 to Bayerische Landesbank, and 192.166.111.0/24 is DEKA-LAN-A-G, registered to DekaBank Deutsche Girozentrale.
• The rest sit under DE-IZB-980623, a single June 1998 assignment split into ten announced pieces, with a newer DE-IZB-20160523 alongside.
• 13,824 addresses, 16 IPv4 prefixes, one IPv6 /32, and a single observed BGP neighbour.

Interesting

• Those three banks are all Landesbanken and Girozentralen — the wholesale institutions of the German public savings-bank sector, owned between the regional states and their local Sparkassen. They compete with each other and they share an IT provider, which is exactly the arrangement the sector was built for: mutualise the expensive infrastructure, compete on the lending.
• The registry contacts still say IZB, for the Bavarian computing centre the company grew out of, decades after the name on the door changed. One upstream for a network holding three banks' address space is a choice you can make when the network is not for the public.

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

Announced prefixes

• 185.153.64.0/22
• 192.166.111.0/24
• 194.145.146.0/24
• 212.34.64.0/19
• 217.175.96.0/20
• 2a02:c00::/32

Upstream networks

• AS9099 Finanz Informatik GmbH & Co. KG

Adjacent networks

• AS9099 Finanz Informatik GmbH & Co. KG