AS58350 — CLASSCOM-AS PHU Classcom Sp. z o.o.

AS58350 announces 3 IPv4 prefixes covering 12,800 addresses and 2 IPv6 prefixes.

About this network

CLASSCOM-AS is operated by PHU Classcom Sp. z o.o.

What it's used for

• The address space carries residential broadband traffic, evidenced by reverse DNS entries such as 0.8.ftth.classcom.pl and 254.23.ftth.classcom.pl indicating fiber-to-the-home infrastructure, alongside c255.15.comtelnet.pl and 254.59.jarosz.pl suggesting DSL or legacy access services.
• The AS announces 12,800 IPv4 addresses across 3 prefixes and 2 IPv6 prefixes, while maintaining only 6 observed routing neighbours. This high address-to-neighbour ratio is characteristic of an access or eyeball network rather than a transit provider.
• As a regional ISP in Kraków, the traffic consists primarily of subscriber internet access, including fiber and DSL connections for residential and small business customers in the Lesser Poland Voivodeship.

Notable

• Registrants for the largest prefixes align with the announcer, with 176.115.0.0/19 and 195.150.76.0/23 registered to Classcom contacts, while 195.150.48.0/20 is registered to Academic Computer Centre CYFRONET AGH under the netname PL-CYFRONET-960829.
• The inventory includes a mix of Classcom-owned space and a block historically associated with CYFRONET, indicating either leased capacity or acquired address space.

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

Announced prefixes

• 176.115.0.0/19
• 195.150.48.0/20
• 195.150.76.0/23
• 2001:678:258::/48
• 2001:6df:fff0::/44

Upstream networks

• AS8323 Academic Computer Centre CYFRONET AGH
• AS24482 SG.GS
• AS20473 The Constant Company, LLC

Downstream networks

• AS200094 PHU MIROLAN Miroslaw Weclaw

Adjacent networks

• AS8323 Academic Computer Centre CYFRONET AGH
• AS200094 PHU MIROLAN Miroslaw Weclaw
• AS24482 SG.GS
• AS20473 The Constant Company, LLC

Routing security

• RPKI: 5 valid, 0 invalid and 0 not-found announcements; 5 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 5 route objects.
• Listed in as-sets: AS-CIX, AS5617:AS-PL, AS8267:AS-KRAKOW-1014.