Autonomous system
AS10129 SSMB-AS-AP Salomon Smith Barney Australia Pty Ltd
Unclassified APNIC
Summary
Salomon Smith Barney Australia
SSMB-AS-AP is registered to Salomon Smith Barney Australia Pty Ltd, the Australian arm of what was Citigroup's investment-banking and brokerage business. AS10129 is a financial firm's own corporate network, still originating its legacy address space.
What it's used for
Corporate connectivity for a broker-dealer: office egress, market-data and order-routing links, and internet-facing services. The AS announces 4 IPv4 prefixes totalling 1,024 addresses — 192.193.0.0/24 through 192.193.3.0/24 — and no IPv6. Splitting a /22 that way is inbound traffic engineering across upstreams, a habit of latency-sensitive trading networks rather than of ISPs.
Notable
This is an enterprise network. 1,024 addresses against 2 observed BGP neighbours cannot be a provider of any kind: a wholesale carrier peers with hundreds to thousands of ASes, and no hosting business runs on a single /22. Two upstreams and one legacy block is a company multihoming for its own resilience. Geolocate this space to a corporate site in Australia.
Interesting
The name is a fossil. Salomon Smith Barney was renamed Citigroup Global Markets in April 2003 and the brand was dropped entirely later that year, yet the APNIC record still carries it more than two decades on. Handles and legal names in the registry outlive the companies they describe, which is precisely why the holder name should never be the sole basis for classifying an AS. The routing, not the label, is what still shows a live enterprise network here.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AU | Australia | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS10129- Registry name
- SSMB-AS-AP
- Registrant
- AAPT Limited
- Abuse contact
- ipnoc@aapt.com.au
- Registered
- 2008-09-04
- Last changed
- 2020-10-30
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS10129
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 4 announcements 4 other origin
- Route objects
- 3 naming AS10129
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: 447 networks and 1,852 prefixes, as published 2026-10-27. 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