AS21559OSNET
Puerto RicoRegistryARINTypeEyeballAt a glance
IPv4 prefixes
42
IPv6 prefixes
1
IPv4 addresses
40.4k
IPv6 /64s
4.3B
Upstream graph
The networks AS21559 is seen behind, one and two hops out, drawn from real AS paths.
AS21559Toward the internet core
Networks observed one and two hops upstream of AS21559 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
151
adjacent networks
- Upstreams
- 139%
- Peers
- 9966%
- Downstreams
- 3926%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS6939Hurricane Electric LLC |  US | Peer | 14,182 | 118 |
| AS3257GTT Communications Inc. | US | Peer | 2,196 | 74 |
| AS174Cogent Communications, LLC | US | Peer | 1,705 | 42 |
| AS23379Blackburn Technologies II, LLC | PR | Peer | 1,608 | 79 |
| AS12956Telxius (Telefonica Global) |  ES | Peer | 1,548 | 33 |
| AS6762Telecom Italia Sparkle (Seabone) |  IT | Peer | 1,060 | 35 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 547 | 46 |
| AS14537Continent 8 LLC | US | Peer | 545 | 4 |
| AS3303Swisscom (Schweiz) AG |  CH | Peer | 167 | 1 |
| AS49544i3D.net B.V |  NL | Peer | 61 | 2 |
Prefixes
All 43The largest blocks AS21559 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 38.2.160.0/19 | 8.2k | 80/80 |
| 192.254.96.0/20 | 4.1k | 80/80 |
| 200.5.16.0/20 | 4.1k | 80/80 |
| 38.87.232.0/21 | 2k | 80/80 |
| 38.107.88.0/21 | 2k | 80/80 |
| 67.206.200.0/21 | 2k | 80/80 |
| 154.64.208.0/21 | 2k | 80/80 |
| 154.64.216.0/21 | 2k | 80/80 |
| 74.119.24.0/22 | 1k | 80/80 |
| 104.218.240.0/22 | 1k | 80/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.