asn.dev

Autonomous system

AS30971 NICAT-CORE-AS Jakob-Haringer-Strasse 8

Unclassified RIPE Enterprise

IPv4 addresses 8.45K 4 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly AT
Exchanges 2 recorded by PCH
Upstreams 8 3 downstream
Flagged prefixes 0 none

Summary

nic.at GmbH

Austria · AI-generated

registry infrastructure business

NICAT-CORE-AS is operated by nic.at GmbH, the official registry for the .at country code top-level domain.

What it's used for

  • The address space carries registry and DNS infrastructure, evidenced by netnames such as ATW-NET and Router-Infrastruktur registered to NIC.at Operations Object.
  • The AS announces 8448 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, while maintaining 30 observed neighbours, indicating a role focused on internal corporate and registry services rather than large-scale transit or access.

Notable

  • All observed registrants align with the announcer, listing NIC.at Operations Object and nic.at GmbH for the major blocks.
  • The address inventory is composed of four distinct IPv4 prefixes, including a /20 and two /21s, alongside a single /43 IPv6 block, reflecting a segmented internal estate for the registry's operational needs.

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 1 country, largest first.

ExchangeLocationTheir address
Vienna Internet ExchangeVienna, Austria193.203.0.30
Salzburg Internet eXchangeSalzburg, Austria185.1.43.8

Transit providers

8 upstream, 3 downstream and 19 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH140
AS1853ACONET83
AS2914NTT America, Inc.49
AS6939Hurricane Electric LLC24
AS5404conova communications GmbH20
AS3303Swisscom (Schweiz) AG6
AS48362Stadtwerke Feldkirch5
AS9002RETN Limited2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 4 prefixes · 8.45K addresses IPv6 1 prefixes

CountryNamePrefixes
ATAustria5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS30971
Registry name
NICAT-CORE-AS
Registrant
NICAT-MNT
Abuse contact
reports@cert.at
Registered
2004-01-29
Last changed
2025-11-20
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
nic.at
Network type
Enterprise
Scope
Regional
Traffic ratio
Mostly Inbound
Peering policy
Open
IRR as-set
AS-NICAT
Present at
2 exchanges
Website
http://www.nic.at/

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
6 authorising AS30971
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
56 naming AS30971

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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