AS38254Internet Technology Laboratory
TaiwanRegistryAPNICAs of 11th November 2026, AS38254 (Internet Technology Laboratory), a network registered in Taiwan with APNIC, originates 5 IPv4 prefixes covering 1.5k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 31,739th-largest of the 80,747 networks we see originating IPv4, and the 123rd-largest of 241 in Taiwan. It is seen behind 7 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS18423 (RAID Networks Co., Ltd.), and in front of 3 downstream networks. 88% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 88% 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 AS38254 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS38254 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
26
adjacent networks
- Upstreams
- 727%
- Peers
- 1662%
- Downstreams
- 312%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS6939Hurricane Electric LLC |  US | Peer | 574 | 66 |
| AS18423RAID Networks Co., Ltd. | TW | Peer | 504 | 91 |
| AS18041Taiwan Digital Streaming Co. | TW | Peer | 3 | 3 |
| AS138997Eons Data Communications Limited |  HK | Peer | 3 | 3 |
| AS24482SG.GS |  SG | Peer | 3 | 3 |
| AS59105Home NOC Operators Group |  JP | Peer | 3 | 3 |
| AS7539National Center for High-performance Computing | TW | Peer | 2 | 1 |
Prefixes
The largest blocks AS38254 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 103.167.250.0/23 | 512 | 76/76 |
| 44.31.69.0/24 | 256 | 76/76 |
| 103.122.119.0/24 | 256 | 76/76 |
| 103.129.145.0/24 | 256 | 76/76 |
| 103.167.250.0/24 | 256 | 17/76 |
| 2403:7f40:e000::/36 | 268M × /64 | 62/63 |
| 2001:df6:c480::/48 | 65.5k × /64 | 62/63 |
| 2404:c140:956e::/48 | 65.5k × /64 | 62/63 |
Routing health
How AS38254'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
- Valid87.5%7
- Invalid0.0%0
- No ROA12.5%1
Propagation
- Globally propagated90% of full-feed peers or more87.5%7
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%12.5%1
Prefix sizes
IPv4 — 5 prefixes
IPv6 — 3 prefixes
- /36268M × /6433.3%1
- /4865.5k × /6466.7%2
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS38254 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.