Autonomous system
AS9555 VZB-AU-AS Verizon Australia PTY Limited
Unclassified ARIN
Summary
Verizon Australia (Verizon Business)
enterprise transit government legacy
AS9555 (VZB-AU-AS) is held by Verizon Australia Pty Limited, the Australian arm of Verizon Business. This is not a consumer ISP: Verizon's Australian operation sells managed network services, connectivity and security to enterprise and government customers, and this AS carries that business.
What it's used for
The evidence describes a corporate services network hanging off a global backbone. RIS sees 31 IPv4 prefixes carrying 137,728 addresses, plus 5 IPv6 prefixes including a 2403:e000::/32. The v4 space is anchored by two large legacy /16s — 152.91.0.0/16 and 165.191.0.0/16 — announced alongside the /17s, /22s and /24s carved out of them, with a scatter of Australian 203.x and 202.x blocks besides.
The decisive number is the neighbour count: 1. A network holding 137,728 addresses with a single observed BGP neighbour is not selling transit to the wider internet; it is a regional stub of a much larger group, taking its connectivity from Verizon's own global backbone and distributing it to Australian customers over private links and managed circuits. An eyeball ISP with this much space would peer widely to save on transit; a wholesale carrier would peer with hundreds. Verizon Australia does neither, because its customers reach it through Verizon, not through the public internet fabric.
The sampled reverse DNS lands on a customer domain rather than any Verizon infrastructure name, which is what you expect when the address space is assigned out to enterprise clients.
Notable
- Verizon's Australian registry contact still sits at "UUNET House" in St Leonards, a leftover of the UUNET and MCI lineage that Verizon Business absorbed.
- Verizon Australia operates several other ASNs; this one is only part of its footprint.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS703 | Verizon Business | 1,905 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 35 prefixes · 138K addresses IPv6 20 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AU | Australia | 55 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS9555- Registry name
- VzB-AU-AS
- Registrant
- Verizon Australia Pty Limited
- Abuse contact
- abuse.apac@verizon.com
- Registered
- 2008-09-04
- Last changed
- 2020-05-27
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 40% valid · 14 valid, 21 with no ROA
- ROAs
- 20 authorising AS9555
- ASPA
- no ASPA record
- IRR
- 71% registered · 25 of 35 announcements
- Route objects
- 38 naming AS9555
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 1,773 prefixes, as published 2026-10-13. 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