AS21309HERABIT S.p.A.
ItalyRegistryRIPE NCCTypeEyeballAt a glance
IPv4 prefixes
57
IPv6 prefixes
1
IPv4 addresses
194k
IPv6 /64s
4.3B
Upstream graph
The networks AS21309 is seen behind, one and two hops out, drawn from real AS paths.
AS21309Toward the internet core
Networks observed one and two hops upstream of AS21309 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
89
adjacent networks
- Upstreams
- 1416%
- Peers
- 6573%
- Downstreams
- 1011%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS9002RETN Limited |  GB | Peer | 1,856 | 82 |
| AS174Cogent Communications, LLC |  US | Peer | 1,387 | 59 |
| AS6939Hurricane Electric LLC | US | Peer | 382 | 14 |
| AS6762Telecom Italia Sparkle (Seabone) | IT | Peer | 373 | 73 |
| AS13030Init7 (Switzerland) Ltd. |  CH | Peer | 141 | 5 |
| AS49544i3D.net B.V |  NL | Peer | 61 | 2 |
| AS24482SG.GS |  SG | Peer | 61 | 2 |
| AS132337Axclusive | SG | Peer | 59 | 1 |
| AS13237euNetworks GmbH |  DE | Peer | 59 | 1 |
| AS14537Continent 8 LLC | US | Peer | 58 | 1 |
Prefixes
All 58The largest blocks AS21309 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 77.89.0.0/18 | 16.4k | 79/80 |
| 213.209.192.0/18 | 16.4k | 79/80 |
| 77.89.0.0/19 | 8.2k | 79/80 |
| 77.89.32.0/19 | 8.2k | 79/80 |
| 83.216.160.0/19 | 8.2k | 79/80 |
| 86.110.128.0/19 | 8.2k | 79/80 |
| 213.174.160.0/19 | 8.2k | 79/80 |
| 213.209.192.0/19 | 8.2k | 79/80 |
| 213.209.224.0/19 | 8.2k | 79/80 |
| 77.89.0.0/20 | 4.1k | 23/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.