AS204136Silent Ghost e.U.
AustriaRegistryRIPE NCCTypeEyeballAs of 11th November 2026, AS204136 (Silent Ghost e.U.), an access network registered in Austria with RIPE NCC, originates 3 IPv4 prefixes covering 768 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 45,671st-largest of the 80,747 networks we see originating IPv4, and the 351st-largest of 624 in Austria. It is seen behind 2 upstream networks, most often AS50873 (David Doepelheuer) and AS40994 (Alwyzon (Hohl IT)). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 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 AS204136 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS204136 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
4
adjacent networks
- Upstreams
- 250%
- Peers
- 250%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS50873David Doepelheuer |  DE | Peer | 278 | 139 |
| AS40994Alwyzon (Hohl IT) | AT | Peer | 137 | 137 |
Prefixes
The largest blocks AS204136 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 103.230.141.0/24 | 256 | 76/76 |
| 169.239.202.0/24 | 256 | 76/76 |
| 185.121.177.0/24 | 256 | 75/76 |
| 2a0a:6043:6400::/40 | 16.8M × /64 | 63/63 |
| 2a0a:6043:ee00::/40 | 16.8M × /64 | 62/63 |
| 2a0a:6043:905a::/48 | 65.5k × /64 | 63/63 |
Routing health
How AS204136'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
- Valid100.0%6
- Invalid0.0%0
- No ROA0.0%0
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 — 3 prefixes
IPv6 — 3 prefixes
- /4016.8M × /6466.7%2
- /4865.5k × /6433.3%1
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS204136 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.