AS51409Sipsynergy Limited
United KingdomRegistryRIPE NCCAt a glance
IPv4 prefixes
12
IPv6 prefixes
0
IPv4 addresses
3.1k
IPv6 /64s
0
Upstream graph
The networks AS51409 is seen behind, one and two hops out, drawn from real AS paths.
AS51409Toward the internet core
Networks observed one and two hops upstream of AS51409 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
137
adjacent networks
- Upstreams
- 3223%
- Peers
- 10577%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS13335Cloudflare, Inc. |  US | Peer | 320 | 80 |
| AS2914NTT America, Inc. | US | Peer | 246 | 36 |
| AS174Cogent Communications, LLC | US | Peer | 130 | 17 |
| AS25091IP-Max SA |  CH | Peer | 16 | 2 |
| AS18106Viewqwest Pte Ltd |  SG | Peer | 16 | 2 |
| AS38880Micron21 Datacentre Pty Ltd |  AU | Peer | 16 | 2 |
| AS6939Hurricane Electric LLC | US | Peer | 16 | 2 |
| AS1031PEER 1031 LLC | US | Peer | 8 | 1 |
| AS3170VeloxServ Communications Ltd | GB | Peer | 8 | 1 |
| AS51907Kanton Zug | CH | Peer | 8 | 1 |
Prefixes
The largest blocks AS51409 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 178.255.56.0/24 | 256 | 80/80 |
| 178.255.57.0/24 | 256 | 80/80 |
| 178.255.58.0/24 | 256 | 80/80 |
| 178.255.59.0/24 | 256 | 80/80 |
| 178.255.60.0/24 | 256 | 80/80 |
| 178.255.61.0/24 | 256 | 80/80 |
| 178.255.62.0/24 | 256 | 80/80 |
| 178.255.63.0/24 | 256 | 80/80 |
| 185.41.224.0/24 | 256 | 80/80 |
| 185.41.225.0/24 | 256 | 80/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.