AS31683 — ZMPG-AS Zarzad Morskiego Portu Gdynia S.A

AS31683 announces 3 IPv4 prefixes covering 2,048 addresses and 0 IPv6 prefixes.

About this network

ZMPG-AS is operated by Zarząd Morskiego Portu Gdynia S.A., the state-owned entity managing the Port of Gdynia in Poland.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by reverse DNS entries like m254.portnet.pl and b128.portnet.pl which point to internal hostnames rather than public customer services.
• The AS announces 2048 IPv4 addresses across 3 prefixes with only 2 observed neighbours, a ratio indicating a small, self-contained internal network rather than a transit or access provider.

Notable

• All three announced prefixes (91.225.64.0/22, 194.150.246.0/23, 195.182.206.0/23) share the netname ZMPG-SA-NET and are registered to Zarząd Morskiego Portu Gdynia S.A., confirming consistent ownership.
• The address inventory is modest and finely subdivided into three distinct blocks, consistent with an internal corporate estate segmented by site or function rather than a large-scale service network.

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

Announced prefixes

• 91.225.64.0/22
• 194.150.246.0/23
• 195.182.206.0/23

Upstream networks

• AS12831 Technical University of Gdansk, Academic Computer Center TASK
• AS20804 Exatel S.A.

Adjacent networks

• AS12831 Technical University of Gdansk, Academic Computer Center TASK
• AS20804 Exatel S.A.

Routing security

• RPKI: 0 valid, 0 invalid and 6 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 12 route objects.
• Listed in as-sets: AS-EXATEL-INT, AS-EXATEL-PL, AS-IPARTNERS, AS12831:AS-TASK-COM-PCWS, AS12831:AS-TASK-COM-PIONIER-TP, AS5550:AS-TASK, AS5550:AS-TASK-1014, AS5617:AS-PL, AS8246:AS-TPNET.