AS131937Joetsu Cable Vision
JapanRegistryAPNICAt a glance
IPv4 prefixes
10
IPv6 prefixes
2
IPv4 addresses
33.3k
IPv6 /64s
8.6B
Upstream graph
The networks AS131937 is seen behind, one and two hops out, drawn from real AS paths.
AS131937Toward the internet core
Networks observed one and two hops upstream of AS131937 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
30
adjacent networks
- Upstreams
- 930%
- Peers
- 2170%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2497Internet Initiative Japan Inc. | JP | Peer | 699 | 98 |
| AS17676SoftBank Corp. | JP | Peer | 83 | 14 |
| AS6939Hurricane Electric LLC |  US | Peer | 54 | 15 |
| AS18106Viewqwest Pte Ltd |  SG | Peer | 24 | 4 |
| AS9002RETN Limited |  GB | Peer | 12 | 2 |
| AS49544i3D.net B.V |  NL | Peer | 12 | 2 |
| AS24482SG.GS | SG | Peer | 12 | 2 |
| AS4775Globe Telecoms |  PH | Peer | 10 | 1 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 4 | 2 |
Prefixes
The largest blocks AS131937 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 126.251.0.0/19 | 8.2k | 79/80 |
| 170.249.96.0/19 | 8.2k | 79/80 |
| 126.251.128.0/20 | 4.1k | 79/80 |
| 126.251.144.0/20 | 4.1k | 79/80 |
| 126.251.32.0/21 | 2k | 79/80 |
| 126.251.112.0/21 | 2k | 79/80 |
| 170.249.64.0/21 | 2k | 79/80 |
| 103.118.92.0/22 | 1k | 79/80 |
| 202.223.12.0/22 | 1k | 79/80 |
| 103.152.66.0/23 | 512 | 79/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.