AS4778 — BORAL-LIMITED-AP - Optus Customer Network

AS4778 announces 1 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.

About this network

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.

Announced prefixes

• 203.20.216.0/22

Upstream networks

• AS49915 Megaport (UK) Limited

Adjacent networks

• AS49915 Megaport (UK) Limited

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-HKTCUSTOMER, AS-MFNX, AS-OPTUS, AS-TMHK, AS49915:AS-CUSTOMERS.