AS63900 — ZUSO - ZUSO Generation Co., Ltd.

AS63900 announces 1 IPv4 prefixes covering 256 addresses and 16 IPv6 prefixes.

About this network

TTC-MPLS is the AS handle for ZUSO Generation Co., Ltd.

What it's used for

• The space carries a single IPv4 block 138.252.12.0/24 with netname X32B535D8-NET and registrant TWNIC ROLE-ZUSO; IRT-ZUSO-TW, alongside ten IPv6 prefixes under 2402:30e0::/32.
• With 256 IPv4 addresses and 29 IPv6 prefixes announced against 9 observed neighbours, the ratio indicates a small-scale business or internal corporate estate rather than a transit or large access network.
• As a cybersecurity consultancy and red team assessment firm, traffic from this AS consists of professional security operations, penetration testing infrastructure, and corporate office endpoints.

Notable

• The RDAP registrant TWNIC ROLE-ZUSO; IRT-ZUSO-TW aligns directly with the announcer ZUSO Generation Co., Ltd.
• The address inventory is compact, consisting of one IPv4 /24 and a contiguous set of IPv6 allocations, typical of a specialized service provider or corporate entity.

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

Announced prefixes

• 138.252.12.0/24
• 2402:30e0:1::/48
• 2402:30e0:2::/47
• 2402:30e0:4::/46
• 2402:30e0:8::/45
• 2402:30e0:10::/44
• 2402:30e0:20::/43
• 2402:30e0:40::/42
• 2402:30e0:80::/41
• 2402:30e0:100::/40
• 2402:30e0:200::/39
• 2402:30e0:400::/38
• 2402:30e0:800::/37
• 2402:30e0:1000::/36
• 2402:30e0:2000::/35
• 2402:30e0:4000::/34
• 2402:30e0:8000::/33

Upstream networks

• AS6939 Hurricane Electric LLC
• AS134823 Sky Digital Co., Ltd.
• AS9678 HostingInside LTD
• AS131638 ZUSO Generation Co., Ltd.
• AS24482 SG.GS
• AS38855 Taiwan Digital Streaming Co.

Downstream networks

• AS131638 ZUSO Generation Co., Ltd.

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS131638 ZUSO Generation Co., Ltd.
• AS134823 Sky Digital Co., Ltd.
• AS9678 HostingInside LTD
• AS38855 Taiwan Digital Streaming Co.
• AS24482 SG.GS

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 67% of announcements registered; 4 route objects.
• Listed in as-sets: AS-CHIEF-TRANSIT, AS-HINET, AS-HOSTINGINSIDE, AS-HOSTINGINSIDE, AS-HOSTINGINSIDE, AS-HURRICANEV6, AS-HYTRON, AS-HYTRON, AS-HYTRONNETWORK, AS-MISAKA-CUSTOMERS2, AS-TWIG, AS134823:AS-IPT, AS17433:AS-HYTRON, AS17433:AS-HYTRON, AS202662:AS-HYTRON, AS58453:AS-ASIAASCUST, AS58453:AS-ASIAASCUST, AS63900:AS-ZUSO, AS917:AS-CUSTOMERS.

Internet exchanges

• Taipei Internet Exchange (TPIX) — Taipei, Taiwan
• Student & Technology United Internet Exchanges — Taipei, Taiwan