AS17421Emome (Chunghwa Telecom)
TaiwanRegistryAPNICTypeEyeballAt a glance
IPv4 prefixes
191
IPv6 prefixes
34
IPv4 addresses
1.7M
IPv6 /64s
2.2T
Upstream graph
The networks AS17421 is seen behind, one and two hops out, drawn from real AS paths.
AS17421Toward the internet core
Networks observed one and two hops upstream of AS17421 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
2
adjacent networks
- Upstreams
- 150%
- Peers
- 150%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3462HiNet (Chunghwa Telecom) | TW | Peer | 17,388 | 142 |
Prefixes
All 225The largest blocks AS17421 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 42.74.0.0/16 | 65.5k | 80/80 |
| 42.75.0.0/16 | 65.5k | 80/80 |
| 111.80.0.0/16 | 65.5k | 80/80 |
| 42.73.0.0/17 | 32.8k | 80/80 |
| 42.73.128.0/17 | 32.8k | 80/80 |
| 42.79.0.0/17 | 32.8k | 80/80 |
| 111.82.0.0/17 | 32.8k | 80/80 |
| 111.82.128.0/17 | 32.8k | 80/80 |
| 223.143.0.0/17 | 32.8k | 80/80 |
| 42.70.0.0/18 | 16.4k | 80/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.