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AS2107ARNES

SloveniaRegistryRIPE NCCTypeEyeball

As of 10th November 2026, AS2107 (ARNES), an access network registered in Slovenia with RIPE NCC, originates 25 IPv4 prefixes covering 409k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 814th-largest of the 80,723 networks we see originating IPv4, and the 2nd-largest of 266 in Slovenia. It is seen behind 4 upstream networks, most often AS174 (Cogent Communications, LLC) and AS21320 (GEANT Vereniging), and in front of 7 downstream networks. 63% 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

25

IPv6 prefixes

2

IPv4 addresses

409k

IPv6 /64s

38.7B

Upstream graph

The networks AS2107 is seen behind, one and two hops out, drawn from real AS paths.

AS2107Toward the internet core
Upstream graph for AS2107: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS2107ARNESThis networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS20965GEANT VerenigingAS21320GEANT VerenigingAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS293ESnetAS11537Internet2AS2603NORDUnet

Networks observed one and two hops upstream of AS2107 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

24

adjacent networks

Upstreams
417%
Peers
1354%
Downstreams
729%

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

Upstreams of AS2107
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer1,42672
AS21320GEANT VerenigingNLPeer1,20265
AS3356Lumen (Level 3)USPeer1736
AS20965GEANT VerenigingNLPeer722

Prefixes

All 27

The largest blocks AS2107 originates, widest first.

Largest prefixes originated by AS2107
PrefixAddressesVisibility
153.5.0.0/1665.5k75/76
193.2.0.0/1665.5k75/76
194.249.0.0/1665.5k75/76
88.200.0.0/1732.8k75/76
163.159.128.0/1732.8k75/76
178.172.0.0/1732.8k75/76
212.235.128.0/1732.8k75/76
95.87.128.0/1816.4k75/76
109.127.192.0/1816.4k75/76
141.255.192.0/1816.4k75/76

Routing health

How AS2107'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

  • Valid63.0%17
  • Invalid0.0%0
  • No ROA37.0%10

Propagation

  • Globally propagated90% of full-feed peers or more100.0%27
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 25 prefixes

IPv6 — 2 prefixes

  • /2934.4B × /6450.0%1
  • /324.3B × /6450.0%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS2107 started or stopped in this period.

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