AS25496 — ZT-AS

AS25496 announces 2 IPv4 prefixes covering 5,120 addresses and 1 IPv6 prefixes.

About this network

ZT-AS is operated by ZSR - ZT Bratislava.

What it's used for

• The address space is registered under netnames SK-ZSR-20021118 and SK-ZSR-20131219, both attributed to ZSR - ZT Bratislava.
• The AS announces 5120 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 14 observed neighbours. This ratio of address space to peering partners suggests a business or corporate network rather than a large-scale transit provider.

Notable

• Registrants for both announced IPv4 prefixes align with the AS holder, listing ZSR - ZT Bratislava and the ZTOT Team for abuse handling.
• The inventory consists of two distinct IPv4 blocks, 217.12.48.0/20 and 185.43.112.0/22, alongside a single /32 IPv6 prefix.

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

Announced prefixes

• 185.43.112.0/22
• 217.12.48.0/20
• 2a01:8a80::/32

Upstream networks

• AS28952 O2 Business Services, a.s
• AS6939 Hurricane Electric LLC
• AS5578 SWAN, a.s.
• AS31230 Slovak University of Technology in Bratislava
• AS3303 Swisscom (Schweiz) AG
• AS33891 Core-Backbone GmbH
• AS15935 ha-vel internet s.r.o.

Adjacent networks

• AS28952 O2 Business Services, a.s
• AS6939 Hurricane Electric LLC
• AS5578 SWAN, a.s.
• AS31230 Slovak University of Technology in Bratislava
• AS3303 Swisscom (Schweiz) AG
• AS33891 Core-Backbone GmbH
• AS15935 ha-vel internet s.r.o.

Internet exchanges

• Slovak Internet eXchange Bratislava — Bratislava, Slovakia