AS48523 — HKZA-AS

AS48523 announces 2 IPv4 prefixes covering 768 addresses and 0 IPv6 prefixes.

About this network

HKZA-AS is operated by ArcelorMittal Poland S.A.

What it's used for

• The address space carries corporate infrastructure, evidenced by the netname HKZA-NET and reverse DNS entries such as dsl126.ipssa.pl.
• The AS announces 768 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access provider.
• Traffic from this AS consists of office workers, industrial plant systems, and internal network endpoints for the steel manufacturing operations.

Notable

• Registrants for both announced prefixes are listed as ArcelorMittal Poland S.A., matching the AS holder.
• The address inventory is compact, comprising two distinct IPv4 blocks with no announced IPv6 prefixes.

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

Announced prefixes

• 91.207.200.0/23
• 91.209.93.0/24

Upstream networks

• AS12912 T-Mobile Polska S.A.
• AS31242 P4 Sp. z o.o.

Adjacent networks

• AS12912 T-Mobile Polska S.A.
• AS31242 P4 Sp. z o.o.

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-IPARTNERS, AS-NETIA-MSK-IX, AS-NETIA-PEERING, AS-TKPSA, AS5617:AS-PL, AS8246:AS-TPNET.