AS5577root SA
LuxembourgRegistryRIPE NCCTypeContentAs of 22nd October 2026, AS5577 (root SA), a content network registered in Luxembourg with RIPE NCC, originates 4 IPv4 prefixes covering 5.1k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 15,289th-largest of the 79,663 networks we see originating IPv4, and the 24th-largest of 105 in Luxembourg. It is seen behind 3 upstream networks, most often AS2914 (NTT America, Inc.) and AS3356 (Lumen (Level 3)), and in front of 1 downstream network. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS5577 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS5577 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
8
adjacent networks
- Upstreams
- 338%
- Peers
- 450%
- Downstreams
- 113%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2914NTT America, Inc. |  US | Peer | 232 | 70 |
| AS3356Lumen (Level 3) | US | Peer | 210 | 62 |
| AS46786Servers.com, Inc. | US | Peer | 80 | 50 |
Prefixes
The largest blocks AS5577 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 83.243.8.0/21 | 2k | 77/77 |
| 195.24.72.0/21 | 2k | 77/77 |
| 195.26.4.0/23 | 512 | 77/77 |
| 195.28.160.0/23 | 512 | 77/77 |
| 2a01:608::/32 | 4.3B × /64 | 63/64 |
| 2001:67c:15a3::/48 | 65.5k × /64 | 63/64 |
Routing health
How AS5577's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid0.0%0
- Invalid0.0%0
- No ROA100.0%6
Propagation
- Globally propagated90% of full-feed peers or more100.0%6
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 4 prefixes
IPv6 — 2 prefixes
- /324.3B × /6450.0%1
- /4865.5k × /6450.0%1
Recent changes
Announcements that started or stopped since 23rd Sept 2026.
No announcement by AS5577 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.