Autonomous system
AS9893 DSE-VIC-GOV-AS Cenitex
Unclassified APNIC
Summary
Cenitex (Victorian Government shared ICT)
government legacy
AS9893 (DSE-VIC-GOV-AS) is held by Cenitex, the State of Victoria's shared ICT services provider. Cenitex was created by the Victorian Government in 2008 and supplies cloud, network, security and workplace computing services to Victorian government departments and agencies. This is a government network, and the AS handle is a fossil: DSE names a Victorian department that no longer exists in that form, while the current holder is the whole-of-government service organisation.
What it's used for
RIS sees 24 IPv4 prefixes carrying 77,056 addresses, no IPv6, and only 1 observed BGP neighbour. A single upstream on a network of that size is the signature of a captive institutional network: it consumes connectivity and provides none. The address count is dominated by the legacy 157.128.0.0/16, supported by 165.142.240.0/20 and a long tail of /24s spread across 203.x, 202.69.x and 192.189.x — space accreted by different Victorian departments over decades and now announced from one place. Reverse DNS bears that out: sampled addresses resolve under justice.vic.gov.au, meaning the block is carrying a Victorian government department's hosts even though the department is not the AS holder.
Notable
- This is a clean illustration of why registry handles are not evidence of current use. The handle says one department, the holder record says Cenitex, and the reverse DNS says the Department of Justice. All three are true at different layers.
- Consolidating many agencies' address space behind one shared-services AS is a deliberate pattern in Australian state government; a hit in this AS tells you "Victorian public sector" but not which agency.
- No IPv6 appears in the global table for this AS.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Sydney | Sydney, Australia | 45.127.172.171 |
| Equinix Internet Exchange Melbourne | Melbourne, Australia | 183.177.61.29 |
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS1221 | Telstra Limited | 1,416 |
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
IPv4 15 prefixes · 77.06K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AU | Australia | 15 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9893- Registry name
- DSE-VIC-GOV-AS
- Registrant
- Cenitex
- Abuse contact
- network.operations@cenitex.vic.gov.au
- Registered
- 2008-09-04
- Last changed
- 2023-07-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 4% valid · 1 valid, 23 with no ROA
- ROAs
- 1 authorising AS9893
- ASPA
- no ASPA record
- IRR
- 75% registered · 18 of 24 announcements 5 other origin
- Route objects
- 18 naming AS9893
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: 431 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