Autonomous system
AS10128 IAG-AS-AP Optus Customer Network
Unclassified APNIC
Summary
Insurance Australia Group (IAG)
IAG-AS-AP is registered under Optus's customer-network umbrella, but the holder is Insurance Australia Group — the 168.140.128.0/17 range it draws from is assigned to Insurance Australia Limited under the netname IAG-AU. IAG is the largest general insurer in Australia and New Zealand, behind NRMA, CGU, SGIO, SGIC and WFI.
What it's used for
IAG's own corporate edge. The AS announces 9 IPv4 prefixes totalling 2,304 addresses, all /24s carved out of a single contiguous 168.140.x block, and no IPv6. That is a company slicing one legacy allocation into per-site or per-function /24s so it can steer them independently, which is ordinary practice for a large enterprise running several data centres and DR sites.
Notable
This is an enterprise network, not a service provider, and the evidence is the pairing of a modest address count with 2 observed BGP neighbours. A carrier of any size peers with hundreds of ASes; two upstreams and a couple of thousand addresses is a company buying transit for itself. The Optus Customer Network label in RIPEstat reflects that Optus administers the AS record on its customer's behalf, an RFC 2270-style arrangement, and it means the traffic belongs to IAG rather than to Optus. Geolocate this to IAG corporate sites in Australia, not to Optus subscribers.
Interesting
The registry entry places the AS at Greystanes, NSW — an insurance company's office park, and a reminder that an AS "located" at a street address is usually an enterprise, not a network operator.
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 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 2.30K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AU | Australia | 5 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS10128- Registry name
- IAG-AS-AP
- Registrant
- SingTel Optus Pty Ltd
- Abuse contact
- abuse@optusnet.com.au
- Registered
- 2008-09-04
- Last changed
- 2021-01-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 0 authorising AS10128
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 10 naming AS10128
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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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