AS18045 — SINOPAC - SinoPac Holdings Corporate Network

AS18045 announces 7 IPv4 prefixes covering 3,072 addresses and 0 IPv6 prefixes.

About this network

SINOPAC is the autonomous system for SinoPac Holdings, a major Taiwanese conglomerate.

What it's used for

• The address space is dedicated to the corporate network, with all seven prefixes registered under the netname SINOPAC-NET.
• The AS announces 3072 IPv4 addresses across 7 prefixes, while maintaining 0 observed routing neighbours, indicating a closed internal estate rather than a transit or access provider.

Notable

• All registrants in the inventory are IRT-SINOPAC-TW, which aligns perfectly with the announcer identity.
• The inventory consists of a contiguous block within the 211.76.144.0/20 range, subdivided into /22, /23, and /24 prefixes for internal segmentation.

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

Announced prefixes

• 211.76.144.0/24
• 211.76.146.0/23
• 211.76.148.0/24
• 211.76.150.0/23
• 211.76.152.0/24
• 211.76.155.0/24
• 211.76.156.0/22

Upstream networks

• AS3462 Data Communication Business Group
• AS9924 Taiwan Fixed Network, Telco and Network Service Provider.

Adjacent networks

• AS3462 Data Communication Business Group
• AS9924 Taiwan Fixed Network, Telco and Network Service Provider.

Routing security

• RPKI: 12 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 30 route objects.
• Listed in as-sets: AS-63529-AS-IMPORT-AS9505, AS-ABOVE-AS-AP, AS-ANC-CUSTOMER-PROXY-REGISTER, AS-CHIEF-TRANSIT, AS-HINET, AS-IIJ, AS-KGEX, AS-RETN-ACTUAL-V4, AS-SEEDNET, AS-TFN-TRANSIT-TEST, AS-TFN-TRANSIT1, AS-TFN-TRANSIT1, AS-TFN-TRANSIT2, AS-TFN-TRANSIT2, AS-TPIX, AS-TRANSROUTE-SPEC, AS-TWIG, AS2497:AS-IIJ, AS3491:AS-CUSTOMERS-AP, AS3491:AS-CUSTOMERS-TEST, AS63529:AS-63529-AS-IMPORT-AS9505, AS7473:AS-CUSTOMERS:AS17408.