AS24806 — INTERNET-CZ Ktis 2, 384 03 Ktis

Network type: hosting

AS24806 announces 11 IPv4 prefixes covering 45,824 addresses and 1 IPv6 prefixes.

About this network

INTERNET-CZ is operated by INTERNET CZ, a.s., a Czech network services provider known as FORPSI.

What it's used for

• The address space carries hosting and dedicated server infrastructure, evidenced by netnames like CLOUD-SMART-58-79-CZ and CZ-INTERNET-20020404, and reverse DNS entries pointing to forpsi.net and serverdedicati.aruba.it.
• With 45,824 IPv4 addresses announced across 13 prefixes and 27 observed neighbours, the ratio suggests a hosting or business network rather than a large-scale residential access provider or pure transit carrier.

Notable

• Registrants include INTERNET CZ, a.s., AlphaNet spolka z o. o., ARUBA Network Core, BlazeArts Kft., and ASPone, s.r.o., indicating a mix of owned space and leased or partner allocations within the AS.
• The inventory includes a single IPv6 prefix 2001:15e8::/32 and 14 announced blocks in Czechia, with the largest block being 81.2.192.0/18.

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

Announced prefixes

• 80.211.192.0/19
• 81.2.192.0/18
• 85.255.0.0/20
• 185.28.100.0/22
• 185.33.144.0/22
• 185.129.136.0/22
• 185.186.20.0/22
• 193.105.157.0/24
• 193.105.158.0/23
• 194.182.64.0/19
• 195.181.208.0/20
• 2001:15e8::/32

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS16019 Vodafone Czech Republic a.s.
• AS24482 SG.GS
• AS29504 Freenet Liberec, z.s.
• AS8218 Zayo Infrastructure France SA
• AS57463 NetIX Communications JSC
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH

Adjacent networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS16019 Vodafone Czech Republic a.s.
• AS24482 SG.GS
• AS29504 Freenet Liberec, z.s.
• AS8218 Zayo Infrastructure France SA
• AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
• AS57463 NetIX Communications JSC

Internet exchanges

• NIX.CZ - Neutral Internet eXchange for the Czech Republic — Prague, Czech Republic
• Budapest Internet Exchange — Budapest, Hungary