AS18185 — NTCU-AS-TW - 4F, No.114, Sec.1, Chung-Shiao W. Road

AS18185 announces 1 IPv4 prefixes covering 4,096 addresses and 0 IPv6 prefixes.

About this network

The AS handle NTCU-AS-TW is held by National Taiwan Chung Hwa University.

What it's used for

• The address space carries the university's network, identified by the netname TWNCTU-NET and registrant IRT-TWNCTU-TW.
• The AS announces 4096 IPv4 addresses across 1 prefix (211.76.240.0/20) with 3 observed neighbours, a ratio consistent with an institutional access network rather than a transit provider.

Notable

• The registrant TWNCTU-NET aligns with the announcer NTCU-AS-TW, confirming the space belongs to the university.
• The inventory consists of a single contiguous /20 block, typical for a campus network estate.

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

Announced prefixes

• 211.76.240.0/20

Upstream networks

• AS4780 Digital United Inc.

Downstream networks

• AS9916 National Yang Ming Chiao Tung University
• AS18420 National Central University

Adjacent networks

• AS4780 Digital United Inc.
• AS9916 National Yang Ming Chiao Tung University
• AS18420 National Central University

Routing security

• RPKI: 1 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 32 route objects.
• Listed in as-sets: AS-63529-AS-IMPORT-AS9505, AS-NCTU, AS-RETN-ACTUAL-V4, AS-SEEDNET, AS-TWIG, AS1659:AS-TANET, AS58453:AS-ASIAASCUST, AS58453:AS-ASIAASCUST, AS58453:AS-ASIATEST, AS58453:AS-ASIATEST2, AS63529:AS-63529-AS-IMPORT-AS9505.