AS28917Fiord Networks, UAB
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
IPv6 prefixes
IPv4 addresses
IPv6 /64s
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.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3257GTT Communications Inc. | Peer | 24,131 | 141 | |
| AS57866Fusix Networks B.V. | Peer | 7,774 | 1 | |
| AS6762Telecom Italia Sparkle (Seabone) | Peer | 3,351 | 68 | |
| AS18106Viewqwest Pte Ltd | Peer | 3,348 | 4 | |
| AS13030Init7 (Switzerland) Ltd. | Peer | 1,758 | 4 | |
| AS39122Blacknight Internet Solutions Limited | Peer | 1,739 | 2 | |
| AS8455atom86 BV | Peer | 1,696 | 2 | |
| AS6667Elisa Oyj | Peer | 1,514 | 4 | |
| AS37271Workonline Communications(Pty) Ltd | Peer | 1,496 | 2 | |
| AS12552GlobalConnect (IP-Only) | Peer | 1,362 | 1 |
Prefixes
The largest blocks AS28917 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 80.77.164.0/24 | 256 | 81/81 |
| 80.77.165.0/24 | 256 | 81/81 |
| 80.77.166.0/24 | 256 | 81/81 |
| 80.77.167.0/24 | 256 | 81/81 |
| 81.95.42.0/24 | 256 | 81/81 |
| 91.247.185.0/24 | 256 | 81/81 |
| 2a11:ca40::/29 | 34.4B × /64 | 63/64 |
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.