subnet.im

AS8666FiberLink GmbH

AustriaRegistryRIPE NCC

As of 11th November 2026, AS8666 (FiberLink GmbH), a network registered in Austria with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 49,318th-largest of the 80,743 networks we see originating IPv4, and the 370th-largest of 624 in Austria. It is seen behind 2 upstream networks, most often AS47147 (Anexia Cloud Solutions GmbH) and AS8412 (T-Mobile Austria GmbH), and in front of 1 downstream network. 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

2

IPv6 prefixes

6

IPv4 addresses

512

IPv6 /64s

393k

Upstream graph

The networks AS8666 is seen behind, one and two hops out, drawn from real AS paths.

AS8666Toward the internet core
Upstream graph for AS8666: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8666FiberLink GmbHThis networkAS8412T-Mobile Austria …AS47147Anexia Cloud Solu…AS3320Deutsche Telekom …AS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS9002RETN Limited

Networks observed one and two hops upstream of AS8666 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS8666
NetworkCountryRelationshipPathsVantage pts
AS47147Anexia Cloud Solutions GmbHATPeer1,041139
AS8412T-Mobile Austria GmbHATPeer293137

Prefixes

The largest blocks AS8666 originates, widest first.

Largest prefixes originated by AS8666
PrefixAddressesVisibility
185.121.52.0/2425676/76
185.121.53.0/2425676/76
2a06:9cc7:ff01::/4865.5k × /6461/63
2a06:9cc7:ff02::/4865.5k × /6461/63
2a06:9cc7:ff0f::/4865.5k × /6461/63
2a06:9cc7:ff11::/4865.5k × /6463/63
2a06:9cc7:ff12::/4865.5k × /6463/63
2a06:9cc7:ff1f::/4865.5k × /6463/63

Routing health

How AS8666'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%8
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%8
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 6 prefixes

  • /4865.5k × /64100.0%6

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS8666 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.