subnet.im

AS28917Fiord Networks, UAB

LithuaniaRegistryRIPE NCCTypeEyeball

As of 26th September 2026, AS28917 (Fiord Networks, UAB), an access network registered in Lithuania with RIPE NCC, originates 6 IPv4 prefixes covering 1.5k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 31,105th-largest of the 79,516 networks we see originating IPv4, and the 91st-largest of 173 in Lithuania. It is seen behind 56 upstream networks, most often AS3257 (GTT Communications Inc.) and AS57866 (Fusix Networks B.V.), and in front of 166 downstream networks. 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

6

IPv6 prefixes

1

IPv4 addresses

1.5k

IPv6 /64s

34.4B

Upstream graph

The networks AS28917 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS28917 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

1,966

adjacent networks

Upstreams
563%
Peers
1,74489%
Downstreams
1668%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 56.

Prefixes

The largest blocks AS28917 originates, widest first.

Largest prefixes originated by AS28917
PrefixAddressesVisibility
80.77.164.0/2425681/81
80.77.165.0/2425681/81
80.77.166.0/2425681/81
80.77.167.0/2425681/81
81.95.42.0/2425681/81
91.247.185.0/2425681/81
2a11:ca40::/2934.4B × /6463/64

Routing health

How AS28917'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%7
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 6 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS28917 started or stopped in this period.

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