AS63519 — SILICON-NZ - 73 Sydney St

AS63519 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

SILICON-NZ is operated by Silicon Systems Limited.

What it's used for

• The address space carries corporate infrastructure, evidenced by reverse DNS entries pointing to silicon.co.nz (e.g., 103-239-104-64.silicon.co.nz).
• The AS announces 256 IPv4 addresses across 1 prefix (103.239.104.0/24) with 1 observed neighbour, indicating a small, self-contained corporate network rather than a transit or access provider.
• Traffic from this AS consists of internal corporate endpoints and services for Silicon Systems Limited, a New Zealand-based technology company.

Notable

• Registrant data aligns with the announcer, listing Silicon Systems Limited and Silicon Systems Limited administrator for the sole prefix.
• The inventory is a single /24 block, representing a standard-sized corporate allocation without subdivision into smaller site-specific prefixes.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 103.239.104.0/24

Upstream networks

• AS18400 Xtreme Networks Limited

Adjacent networks

• AS18400 Xtreme Networks Limited

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-4648-CUSTOMERS, AS-56030-CUSTOMER-AS18400, AS-FRIENDS-OF-XTREME, AS-HURRICANE, AS-KDDCUSTOMER2, AS-LAYER2-TRANSIT, AS-RETN-ACTUAL-V4, AS-TELSTRA-INTL-CUSTOMERS, AS-VOCUSNZ-CUST, AS-VODAFONENZ-CUST, AS1221:AS-CUSTOMERS, AS18400:AS-CONE, AS63830:AS-AKL-IX, AS7606:AS-NSW-IX, AS7606:AS-QLD-IX.