asn.dev

Autonomous system

AS18431 DFAT-AS-AP Department of Foreign Affairs and Trade

Unclassified APNIC

IPv4 addresses 7.68K 9 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly AU
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Department of Foreign Affairs and Trade

Australia · AI-generated

government business australia

DFAT-AS-AP is operated by the Department of Foreign Affairs and Trade.

What it's used for

  • The address space carries government infrastructure, identified by the consistent netname DFAT-AU across all announced prefixes.
  • The AS announces 7,680 IPv4 addresses across 9 prefixes with only 2 observed neighbours, indicating a small, self-contained government network rather than a transit or access provider.

Notable

  • All registrants align with the announcer, listing Department of Foreign Affairs and Trade as the administrative contact under the IRT-AUSAID-NON-AU handle.
  • The address inventory is a contiguous block within the 203.6.160.0/21 range, subdivided into /21, /22, /23, and /24 prefixes, typical of a single organisation managing its own IP estate.

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
AS38809Vocus Advanced Services177
AS1221Telstra Limited118

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, 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 9 prefixes · 7.68K addresses IPv6 0 prefixes

CountryNamePrefixes
AUAustralia9

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS18431
Registry name
DFAT-AS-AP
Registrant
Department of Foreign Affairs and Trade
Abuse contact
gateway@dfat.gov.au
Registered
2022-12-14
Last changed
2022-12-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 5 with no ROA
ROAs
0 authorising AS18431
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
7 naming AS18431

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 1,779 prefixes, as published 2026-10-21. 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