asn.dev

Autonomous system

AS24806 INTERNET-CZ Ktis 2, 384 03 Ktis

Hosting RIPE

IPv4 addresses 45.82K 11 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 2 recorded by PCH
Upstreams 8 0 downstream
Flagged prefixes 0 none

Summary

FORPSI

Czechia · AI-generated

hosting business czech

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. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 2 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
NIX.CZ - Neutral Internet eXchange for the Czech RepublicPrague, Czech Republic91.210.16.165
Budapest Internet ExchangeBudapest, Hungary193.188.137.140

Transit providers

8 upstream, 0 downstream and 11 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB319
AS6939Hurricane Electric LLC160
AS174Cogent Communications, LLC132
AS16019Vodafone Czech Republic a.s.33
AS24482SG.GS12
AS29504Freenet Liberec, z.s.12
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH11
AS8218Zayo Infrastructure France SA11

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-17, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 11 prefixes · 45.82K addresses IPv6 1 prefixes

CountryNamePrefixes
CZCzechia12

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS24806
Registry name
INTERNET-CZ
Registrant
INTERNET-CZ-MNT
Abuse contact
abuse@forpsi.com
Registered
2002-09-24
Last changed
2025-03-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 12 valid, 0 with no ROA
ROAs
12 authorising AS24806
ASPA
no ASPA record
IRR
100% registered · 12 of 12 announcements
Route objects
14 naming AS24806

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-17. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check