AS23855Singapore Advanced Research and Education Network
SingaporeRegistryAPNICAt a glance
IPv4 prefixes
2
IPv6 prefixes
1
IPv4 addresses
512
IPv6 /64s
65.5k
Upstream graph
The networks AS23855 is seen behind, one and two hops out, drawn from real AS paths.
AS23855Toward the internet core
Networks observed one and two hops upstream of AS23855 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
98
adjacent networks
- Upstreams
- 1818%
- Peers
- 6162%
- Downstreams
- 1919%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS293ESnet |  US | Peer | 1,479 | 1 |
| AS134148SingAREN | SG | Peer | 397 | 63 |
| AS136968SingAREN | SG | Peer | 283 | 49 |
| AS4637Telstra International Limited |  HK | Peer | 220 | 72 |
| AS6939Hurricane Electric LLC | US | Peer | 108 | 8 |
| AS23864Singapre Advance Research and Education Network - National Grid Office - IHPC | SG | Peer | 42 | 1 |
| AS24490Trans-Eurasia Information Network (TEIN2) - SG |  CN | Peer | 39 | 1 |
| AS7660Asia Pacific Advanced Network - Japan |  JP | Peer | 16 | 1 |
| AS49544i3D.net B.V |  NL | Peer | 13 | 2 |
| AS4775Globe Telecoms |  PH | Peer | 11 | 1 |
Prefixes
The largest blocks AS23855 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 203.30.38.0/24 | 256 | 80/80 |
| 203.30.39.0/24 | 256 | 80/80 |
| 2001:df0:21a::/48 | 65.5k × /64 | 61/62 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.