AS212138 — AS_TSB Technicke site Brno, akciova spolecnost

AS212138 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

ASTSB is held by Technicke site Brno, akciova spolecnost.

What it's used for

• The address space carries corporate infrastructure, indicated by netnames TSB-ISP1 and TSB-ISP2 associated with the registrant.
• The AS announces 1024 IPv4 addresses across 3 prefixes and maintains 2 observed neighbours, a ratio consistent with a small internal corporate estate rather than a public access network.
• Traffic from this AS consists of internal corporate endpoints and office workers for the Brno-based technical site operator.

Notable

• Registrants for all announced prefixes are listed as Abuse-C Role, which aligns with the AS holder Technicke site Brno, akciova spolecnost.
• The inventory consists of three contiguous IPv4 blocks within the 192.145.104.0/22 range, with no IPv6 prefixes announced.

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

Announced prefixes

• 192.145.104.0/22

Upstream networks

• AS24641 FASTER CZ spol. s r.o.
• AS197451 Brno University of Technology

Adjacent networks

• AS24641 FASTER CZ spol. s r.o.
• AS197451 Brno University of Technology

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-CETIN, AS-FASTER-CUST, AS-RETN-ACTUAL-V4, AS-VUTBR.