AS197572 — ASNCITYNET CITYNET MARCIN SOBALA - PIOTR MISIUDA

AS197572 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

ASNCITYNET is held by Citynet Marcin Sobala - Piotr Misiuda.

What it's used for

• The space carries business and data center infrastructure, evidenced by the netname CNR and the operator's known operation of a facility in Krakow.
• The AS announces 1024 IPv4 addresses across 1 prefix with 13 observed neighbours, indicating a role focused on hosting and business connectivity rather than large-scale residential access.
• Traffic from this AS consists of data center workloads and business endpoints associated with the operator's facility services.

Notable

• The RDAP registrant CITYNET MARCIN SOBALA - PIOTR MISIUDA matches the AS holder name exactly.
• The address inventory consists of a single contiguous /22 block, 91.225.132.0/22, with no IPv6 prefixes in inventory.

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

Announced prefixes

• 91.225.132.0/22

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS42927 S-NET Sp. z o.o.
• AS33891 Core-Backbone GmbH
• AS3257 GTT Communications Inc.
• AS24482 SG.GS

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS42927 S-NET Sp. z o.o.
• AS3257 GTT Communications Inc.
• AS33891 Core-Backbone GmbH
• AS24482 SG.GS

Routing security

• RPKI: 1 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-CTN, AS-DATA-COM, AS-EW, AS-GTTCUST, AS-IPARTNERS, AS-NETIA, AS-NETIA-MSK-IX, AS-NETIA-PEERING, AS-PODKARPACKI-NET, AS-RETN-ACTUAL-V4, AS-SZARANET, AS-SZARANET-TPNET, AS-TPIX, AS29535:AS-MIX2, AS29535:AS-TPIX, AS5617:AS-PL, AS8246:AS-TPNET.

Internet exchanges

• TPIX - Internet Exchange — Warsaw, Poland
• Equinix Internet Exchange Warsaw — Warsaw, Poland