AS201447 — AS_CNB The Czech National Bank

AS201447 announces 3 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

ASCNB is operated by The Czech National Bank.

What it's used for

• The address space carries internal corporate infrastructure, identified by the netname CNBNET across all announced prefixes.
• The AS announces 1024 IPv4 addresses across 3 prefixes with only 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or access provider.
• Traffic from this AS consists of internal administrative, financial, and supervisory systems for the central bank of the Czech Republic.

Notable

• All registrants for the announced prefixes are listed as The Czech National Bank, matching the AS holder.
• The address inventory is finely subdivided into three small blocks (one /23 and two /24s), consistent with site-by-site segmentation for a single corporate entity.

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

Announced prefixes

• 193.84.155.0/24
• 193.84.156.0/23
• 193.84.159.0/24

Upstream networks

• AS6855 Slovak Telekom, a.s.

Adjacent networks

• AS6855 Slovak Telekom, a.s.

Routing security

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