subnet.im

AS9264Academia Sinica

TaiwanRegistryAPNICTypeEyeball

As of 23rd October 2026, AS9264 (Academia Sinica), an access network registered in Taiwan with APNIC, originates 6 IPv4 prefixes covering 71.7k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 3,031st-largest of the 79,652 networks we see originating IPv4, and the 36th-largest of 233 in Taiwan. It is seen behind 24 upstream networks, most often AS9505 (Taiwan Internet Gateway) and AS6939 (Hurricane Electric LLC), and in front of 4 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

6

IPv6 prefixes

2

IPv4 addresses

71.7k

IPv6 /64s

8.6B

Upstream graph

The networks AS9264 is seen behind, one and two hops out, drawn from real AS paths.

AS9264Toward the internet core
Upstream graph for AS9264: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS9264Academia SinicaThis networkAS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS7660Asia Pacific Adva…AS7713PT Telkom Indones…AS9505Taiwan Internet G…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS11537Internet2AS23855Singapore Advance…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS9264 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

97

adjacent networks

Upstreams
2425%
Peers
6971%
Downstreams
44%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS9264
NetworkCountryRelationshipPathsVantage pts
AS9505Taiwan Internet GatewayTWPeer357115
AS6939Hurricane Electric LLCUSPeer28157
AS1299Arelion (fka. Telia Carrier)SEPeer17250
AS7660Asia Pacific Advanced Network - JapanJPPeer842
AS7713PT Telkom Indonesia TbkIDPeer104
AS14537Continent 8 LLCUSPeer104
AS49544i3D.net B.VNLPeer104
AS23673Cogetel Online, Cambodia, ISPKHPeer52
AS16552Tiggee LLCUSPeer52
AS23855Singapore Advanced Research and Education NetworkSGPeer51

Prefixes

The largest blocks AS9264 originates, widest first.

Largest prefixes originated by AS9264
PrefixAddressesVisibility
140.109.0.0/1665.5k77/77
202.169.160.0/204.1k77/77
103.130.252.0/221k77/77
117.103.96.0/2351277/77
117.103.96.0/2425677/77
117.103.98.0/2425677/77
2001:c08::/324.3B × /6463/64
2403:c240::/324.3B × /6463/64

Routing health

How AS9264's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%8
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%8
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 6 prefixes

IPv6 — 2 prefixes

  • /324.3B × /64100.0%2

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS9264 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.