Autonomous system
AS4778 BORAL-LIMITED-AP - Optus Customer Network
Unclassified ARIN
Summary
Boral Limited
enterprise legacy
BORAL-LIMITED-AP — the corporate network of Boral Limited, an Australian building and construction materials company. The ASN is registered as an Optus customer network, meaning Boral runs its own AS behind Optus connectivity.
What it's used for
- Boral's internal corporate networking and internet-facing services.
- Multi-homed or provider-connected enterprise routing rather than any public service offering.
Notable
- Boral is Australia's largest vertically integrated construction materials business, spanning quarries, cement, asphalt, and concrete across hundreds of sites.
- The ASN holds only a small allocation — typical of an enterprise that wants its own AS number for routing control, not an operator serving customers.
Interesting
- "Optus Customer Network" in the registry description is a giveaway that this space was assigned through the carrier for a business customer, a common pattern for Australian enterprise ASNs.
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 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS49915 | Megaport (UK) Limited | 236 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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
- ARIN
- Handle
AS4778- Registry name
- BORAL-LIMITED-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
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS4778
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS4778
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 1,843 prefixes, as published 2026-11-01. 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