AS131921GMO GlobalSign Holdings K.K.
JapanRegistryAPNICAt a glance
IPv4 prefixes
53
IPv6 prefixes
13
IPv4 addresses
179k
IPv6 /64s
134M
Upstream graph
The networks AS131921 is seen behind, one and two hops out, drawn from real AS paths.
AS131921Toward the internet core
Networks observed one and two hops upstream of AS131921 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
29
adjacent networks
- Upstreams
- 931%
- Peers
- 1966%
- Downstreams
- 13%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2497Internet Initiative Japan Inc. | JP | Peer | 4,549 | 142 |
| AS17676SoftBank Corp. | JP | Peer | 227 | 13 |
| AS18106Viewqwest Pte Ltd |  SG | Peer | 98 | 4 |
| AS9002RETN Limited |  GB | Peer | 91 | 3 |
| AS6939Hurricane Electric LLC |  US | Peer | 84 | 12 |
| AS24482SG.GS | SG | Peer | 49 | 2 |
| AS4775Globe Telecoms |  PH | Peer | 42 | 1 |
| AS49544i3D.net B.V |  NL | Peer | 42 | 1 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 14 | 2 |
Prefixes
All 66The largest blocks AS131921 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 153.122.0.0/16 | 65.5k | 79/80 |
| 153.122.0.0/20 | 4.1k | 79/80 |
| 153.122.16.0/20 | 4.1k | 79/80 |
| 153.122.32.0/20 | 4.1k | 79/80 |
| 153.122.48.0/20 | 4.1k | 79/80 |
| 153.122.64.0/20 | 4.1k | 79/80 |
| 153.122.80.0/20 | 4.1k | 79/80 |
| 153.122.96.0/20 | 4.1k | 79/80 |
| 153.122.112.0/20 | 4.1k | 79/80 |
| 153.122.128.0/20 | 4.1k | 79/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.