AS9916 National Yang Ming Chiao Tung University

NCTU-TW - National Yang Ming Chiao Tung University · registered in Taiwan

IPv4 addresses93,6969 prefixes · 0.003% of announced IPv4

Rank in Taiwan#26largest network in TW by IPv4 space, of 237 · 0.28% of TW

Rank worldwide#1,967of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryTaiwan288 ASNs registered there

Open AS9916 in ASN lookup Look up an IP in this network (120.126.32.1) All networks in Taiwan

IPv4 prefixes

All 9 prefixes, in address order.

120.126.32.0/19
120.126.64.0/19
120.126.96.0/20
140.113.0.0/16
140.129.51.0/24
140.129.52.0/22
140.129.56.0/21
140.129.64.0/20
140.129.80.0/24

IPv6 prefixes

All 1 prefix.

2001:f18::/32

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AS17716#29 NTU-TW - National Taiwan University76,800

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources