asn.dev

Autonomous system

AS203933 SK-DC-AS

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly SK
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

DataCentrum

Slovakia · AI-generated

hosting slovakia datacenter

SK-DC-AS is held by DataCentrum.

What it's used for

  • The address space carries hosting infrastructure, indicated by the netname SK-DC-20141024 and the registrant DataCentrum.
  • The AS announces 1024 IPv4 addresses across 1 prefix (185.74.196.0/22) with 2 observed neighbours, a ratio consistent with a hosting or datacenter provider rather than a transit carrier.
  • Traffic from this AS consists of server workloads, cloud services, and datacenter tenants located in Slovakia.

Notable

  • The RDAP registrant DataCentrum matches the AS holder name in the registry.
  • The address inventory consists of a single contiguous /22 block, typical for a dedicated datacenter allocation.

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

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5578SWAN, a.s.177
AS15962Orange Slovensko a.s.60

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 1 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
SKSlovakia1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203933
Registry name
SK-DC-AS
Registrant
DataCentrum
Abuse contact
abuse@datacentrum.sk
Registered
2015-10-01
Last changed
2024-05-29
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS203933
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
10 naming AS203933

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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