Autonomous system
AS35339 CZ-AS
Unclassified RIPE
Summary
AtNOC GmbH
hosting business austria
CZ-AS is operated by AtNOC GmbH, an Austrian computing infrastructure and web hosting provider based in Vienna.
What it's used for
- The address space carries customer and service infrastructure, evidenced by reverse DNS entries like
095129205254.cust.akis.netand netnames such asAT-AKIS-20090223andAT-AKIS-20140801. - The AS announces 3584 IPv4 addresses across 3 prefixes and 2 IPv6 prefixes, while maintaining 35 observed neighbours; this ratio of modest address space against a significant number of peering partners suggests a role focused on hosting and business connectivity rather than large-scale residential access or pure transit.
Notable
- Registrants for the two largest prefixes are listed as
A.K.I.S. GmbH, while the smallest prefix is registered toAtNOC GmbH, indicating a relationship between the two entities or historical address allocation. - The address inventory is compact, consisting of three distinct IPv4 blocks and two IPv6 blocks, all located in Austria.
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
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.180 |
Transit providers
7 upstream, 0 downstream and 11 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 3.58K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS35339- Registry name
- CZ-AS
- Registrant
- MNT-ATNOC
- Abuse contact
- abuse@atnoc.net
- Registered
- 2005-07-19
- Last changed
- 2023-05-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS35339
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS35339
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: 442 networks and 1,782 prefixes, as published 2026-10-16. 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