AS131923MCAT Ltd.
JapanRegistryAPNICTypeEyeballAt a glance
IPv4 prefixes
10
IPv6 prefixes
1
IPv4 addresses
22.5k
IPv6 /64s
4.3B
Upstream graph
The networks AS131923 is seen behind, one and two hops out, drawn from real AS paths.
AS131923Toward the internet core
Networks observed one and two hops upstream of AS131923 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
46
adjacent networks
- Upstreams
- 1328%
- Peers
- 3372%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS4713NTT Communications Corporation (OCN) | JP | Peer | 470 | 59 |
| AS2519ARTERIA Networks Corporation | JP | Peer | 141 | 39 |
| AS17676SoftBank Corp. | JP | Peer | 110 | 24 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 22 | 4 |
| AS18106Viewqwest Pte Ltd |  SG | Peer | 22 | 4 |
| AS49544i3D.net B.V |  NL | Peer | 22 | 4 |
| AS137409GSL Networks Pty LTD |  AU | Peer | 11 | 2 |
| AS24482SG.GS | SG | Peer | 11 | 2 |
| AS9002RETN Limited |  GB | Peer | 11 | 2 |
| AS24940Hetzner Online GmbH |  DE | Peer | 11 | 2 |
Prefixes
The largest blocks AS131923 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 218.45.64.0/19 | 8.2k | 80/80 |
| 120.50.192.0/20 | 4.1k | 80/80 |
| 133.247.240.0/20 | 4.1k | 80/80 |
| 133.247.136.0/21 | 2k | 80/80 |
| 103.95.104.0/22 | 1k | 80/80 |
| 133.88.88.0/22 | 1k | 80/80 |
| 219.100.156.0/22 | 1k | 80/80 |
| 133.88.92.0/23 | 512 | 80/80 |
| 133.88.87.0/24 | 256 | 80/80 |
| 133.88.94.0/24 | 256 | 80/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.