AS57717FiberXpress BV
NetherlandsRegistryRIPE NCCAs of 11th November 2026, AS57717 (FiberXpress BV), a network registered in the Netherlands with RIPE NCC, originates 9 IPv4 prefixes covering 2.6k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 23,460th-largest of the 80,747 networks we see originating IPv4, and the 336th-largest of 1,042 in the Netherlands. It is seen behind 17 upstream networks, most often AS33891 (Core-Backbone GmbH) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 8 downstream networks. 91% 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 AS57717 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS57717 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
91
adjacent networks
- Upstreams
- 1719%
- Peers
- 6673%
- Downstreams
- 89%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS33891Core-Backbone GmbH |  DE | Peer | 1,357 | 47 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 589 | 52 |
| AS3257GTT Communications Inc. |  US | Peer | 363 | 29 |
| AS6939Hurricane Electric LLC | US | Peer | 342 | 41 |
| AS5511Orange S.A. |  FR | Peer | 143 | 12 |
| AS39122Blacknight Internet Solutions Limited |  IE | Peer | 85 | 2 |
| AS174Cogent Communications, LLC | US | Peer | 56 | 7 |
| AS25091IP-Max SA |  CH | Peer | 52 | 2 |
| AS49544i3D.net B.V | NL | Peer | 52 | 2 |
| AS8298IPng Networks GmbH | CH | Peer | 50 | 2 |
Prefixes
The largest blocks AS57717 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 185.216.140.0/23 | 512 | 75/76 |
| 45.80.36.0/24 | 256 | 75/76 |
| 91.202.208.0/24 | 256 | 75/76 |
| 95.135.68.0/24 | 256 | 75/76 |
| 185.173.233.0/24 | 256 | 75/76 |
| 185.173.235.0/24 | 256 | 75/76 |
| 185.216.143.0/24 | 256 | 75/76 |
| 185.225.112.0/24 | 256 | 75/76 |
| 194.50.17.0/24 | 256 | 75/76 |
| 2a0b:b7c0::/30 | 17.2B × /64 | 62/63 |
Routing health
How AS57717'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
- Valid90.9%10
- Invalid0.0%0
- No ROA9.1%1
Propagation
- Globally propagated90% of full-feed peers or more100.0%11
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 9 prefixes
IPv6 — 2 prefixes
- /3017.2B × /64100.0%2
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS57717 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.