AS24641FASTER CZ spol. s r.o.
CzechiaRegistryRIPE NCCAs of 26th September 2026, AS24641 (FASTER CZ spol. s r.o.), a network registered in Czechia with RIPE NCC, originates 10 IPv4 prefixes covering 18.4k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 7,383rd-largest of the 79,516 networks we see originating IPv4, and the 41st-largest of 574 in Czechia. It is seen behind 10 upstream networks, most often AS28725 (CETIN a.s.) and AS39392 (SH.cz s.r.o.), and in front of 13 downstream networks. 92% of its announcements have 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 AS24641 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS24641 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
66
adjacent networks
- Upstreams
- 1015%
- Peers
- 4365%
- Downstreams
- 1320%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS28725CETIN a.s. | CZ | Peer | 1,851 | 118 |
| AS39392SH.cz s.r.o. | CZ | Peer | 337 | 94 |
| AS16019Vodafone Czech Republic a.s. | CZ | Peer | 303 | 90 |
| AS6939Hurricane Electric LLC |  US | Peer | 187 | 14 |
| AS24940Hetzner Online GmbH |  DE | Peer | 39 | 2 |
| AS49544i3D.net B.V |  NL | Peer | 35 | 2 |
| AS24482SG.GS |  SG | Peer | 33 | 3 |
| AS32590Valve Corporation | US | Peer | 31 | 2 |
| AS132337Axclusive | SG | Peer | 23 | 1 |
| AS8218Zayo Europe |  FR | Peer | 1 | 1 |
Prefixes
The largest blocks AS24641 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 77.240.176.0/20 | 4.1k | 80/81 |
| 81.19.0.0/20 | 4.1k | 80/81 |
| 85.132.144.0/20 | 4.1k | 80/81 |
| 95.129.96.0/21 | 2k | 80/81 |
| 91.196.40.0/22 | 1k | 80/81 |
| 185.50.228.0/22 | 1k | 80/81 |
| 185.146.4.0/22 | 1k | 80/81 |
| 91.224.48.0/23 | 512 | 80/81 |
| 77.240.176.0/24 | 256 | 80/81 |
| 85.132.153.0/24 | 256 | 79/81 |
Routing health
How AS24641'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
- Valid91.7%11
- Invalid0.0%0
- No ROA8.3%1
Propagation
- Globally propagated90% of full-feed peers or more100.0%12
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 10 prefixes
IPv6 — 2 prefixes
- /324.3B × /64100.0%2
Recent changes
Announcements that started or stopped since 28th Aug 2026.
No announcement by AS24641 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.