AS9916National Yang Ming Chiao Tung University
TaiwanRegistryAPNICAs of 23rd October 2026, AS9916 (National Yang Ming Chiao Tung University), a network registered in Taiwan with APNIC, originates 10 IPv4 prefixes covering 94k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 2,492nd-largest of the 79,666 networks we see originating IPv4, and the 30th-largest of 233 in Taiwan. It is seen behind 3 upstream networks, most often AS18185 (National Chiao Tung University) and AS18423 (RAID Networks Co., Ltd.). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS9916 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS9916 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
7
adjacent networks
- Upstreams
- 343%
- Peers
- 457%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS18185National Chiao Tung University | TW | Peer | 751 | 139 |
| AS18423RAID Networks Co., Ltd. | TW | Peer | 4 | 4 |
| AS4780Digital United Inc. | TW | Peer | 1 | 1 |
Prefixes
The largest blocks AS9916 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 140.113.0.0/16 | 65.5k | 77/77 |
| 120.126.32.0/19 | 8.2k | 77/77 |
| 120.126.64.0/19 | 8.2k | 77/77 |
| 120.126.96.0/20 | 4.1k | 77/77 |
| 140.129.64.0/20 | 4.1k | 77/77 |
| 140.129.56.0/21 | 2k | 77/77 |
| 140.129.52.0/22 | 1k | 77/77 |
| 140.129.51.0/24 | 256 | 77/77 |
| 140.129.80.0/24 | 256 | 77/77 |
| 192.83.180.0/24 | 256 | 1/77 |
Routing health
How AS9916'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%11
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more90.9%10
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%9.1%1
Prefix sizes
IPv4 — 10 prefixes
IPv6 — 1 prefixes
- /324.3B × /64100.0%1
Recent changes
Announcements that started or stopped since 23rd Sept 2026.
No announcement by AS9916 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.