AS12387TON Total optical Networks AG
SwitzerlandRegistryRIPE NCCTypeCarrierAt a glance
IPv4 prefixes
4
IPv6 prefixes
1
IPv4 addresses
10.2k
IPv6 /64s
4.3B
Upstream graph
The networks AS12387 is seen behind, one and two hops out, drawn from real AS paths.
AS12387Toward the internet core
Networks observed one and two hops upstream of AS12387 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
235
adjacent networks
- Upstreams
- 3515%
- Peers
- 17574%
- Downstreams
- 2511%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS33891Core-Backbone GmbH |  DE | Peer | 1,745 | 41 |
| AS4455IX Reach Ltd |  GB | Peer | 1,085 | 50 |
| AS9002RETN Limited | GB | Peer | 775 | 32 |
| AS6939Hurricane Electric LLC |  US | Peer | 533 | 38 |
| AS6730Sunrise GmbH | CH | Peer | 328 | 14 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 192 | 2 |
| AS38880Micron21 Datacentre Pty Ltd |  AU | Peer | 190 | 2 |
| AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI |  TR | Peer | 117 | 2 |
| AS8888xTom Pty Ltd | AU | Peer | 117 | 2 |
| AS213151Christian Elsen | DE | Peer | 114 | 2 |
Prefixes
The largest blocks AS12387 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 77.237.192.0/19 | 8.2k | 80/80 |
| 195.4.176.0/22 | 1k | 80/80 |
| 77.237.206.0/23 | 512 | 80/80 |
| 77.237.208.0/23 | 512 | 80/80 |
| 2a00:c10::/32 | 4.3B × /64 | 61/62 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.