AS2506NTT business Solutions corporation
JapanRegistryAPNICAt a glance
IPv4 prefixes
15
IPv6 prefixes
1
IPv4 addresses
217k
IPv6 /64s
4.3B
Upstream graph
The networks AS2506 is seen behind, one and two hops out, drawn from real AS paths.
AS2506Toward the internet core
Networks observed one and two hops upstream of AS2506 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
4
adjacent networks
- Upstreams
- 250%
- Peers
- 250%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2907Science Information Network | JP | Peer | 1,029 | 139 |
| AS7671NTT SmartConnect Corporation | JP | Peer | 220 | 70 |
Prefixes
The largest blocks AS2506 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 133.41.0.0/16 | 65.5k | 79/80 |
| 150.19.0.0/16 | 65.5k | 79/80 |
| 165.242.0.0/16 | 65.5k | 79/80 |
| 202.249.192.0/19 | 8.2k | 79/80 |
| 202.249.224.0/19 | 8.2k | 79/80 |
| 202.15.112.0/22 | 1k | 80/80 |
| 202.249.200.0/22 | 1k | 80/80 |
| 202.245.144.0/24 | 256 | 79/80 |
| 202.249.204.0/24 | 256 | 79/80 |
| 202.249.206.0/24 | 256 | 79/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.