AS21574Century Telecom Ltda
BrazilRegistryLACNICTypeEyeballAt a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS21574 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS21574 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
465
adjacent networks
- Upstreams
- 4710%
- Peers
- 31067%
- Downstreams
- 10823%
Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 47.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS7195EdgeUno |  CO | Peer | 8,101 | 98 |
| AS263444Open X Tecnologia Ltda | BR | Peer | 5,964 | 86 |
| AS3356Lumen (Level 3) |  US | Peer | 3,307 | 88 |
| AS1031PEER 1031 LLC | US | Peer | 2,063 | 27 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 1,066 | 2 |
| AS25091IP-Max SA |  CH | Peer | 845 | 4 |
| AS8888xTom Pty Ltd |  AU | Peer | 806 | 2 |
| AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI |  TR | Peer | 806 | 2 |
| AS8298IPng Networks GmbH | CH | Peer | 801 | 2 |
| AS6939Hurricane Electric LLC | US | Peer | 791 | 32 |
Prefixes
The largest blocks AS21574 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 186.249.224.0/20 | 4.1k | 80/80 |
| 187.1.176.0/20 | 4.1k | 80/80 |
| 200.169.0.0/20 | 4.1k | 80/80 |
| 168.227.200.0/22 | 1k | 80/80 |
| 187.1.176.0/24 | 256 | 14/80 |
| 187.1.178.0/24 | 256 | 36/80 |
| 2804:23ec::/32 | 4.3B × /64 | 61/62 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.