subnet.im

AS50919INTERWORKS Single Member S.A.

GreeceRegistryRIPE NCC

As of 12th November 2026, AS50919 (INTERWORKS Single Member S.A.), a network registered in Greece with RIPE NCC, originates 6 IPv4 prefixes covering 6.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 14,164th-largest of the 80,772 networks we see originating IPv4, and the 38th-largest of 228 in Greece. It is seen behind 4 upstream networks, most often AS174 (Cogent Communications, LLC) and AS6799 (Ote SA (Hellenic Telecommunications…), and in front of 2 downstream networks. 86% 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

6

IPv6 prefixes

1

IPv4 addresses

6.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS50919 is seen behind, one and two hops out, drawn from real AS paths.

AS50919Toward the internet core
Upstream graph for AS50919: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS50919INTERWORKS Single…This networkAS174Cogent Communicat…AS6799Ote SA (Hellenic …AS25472Nova Telecommunic…AS198477TI SPARKLE GREECE…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS3491PCCW Global (HK) …AS12713Ote SA (Hellenic …AS21215UNITED GROUP NETW…AS6762Telecom Italia Sp…AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS50919 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

13

adjacent networks

Upstreams
431%
Peers
754%
Downstreams
215%

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

Upstreams of AS50919
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer38789
AS6799Ote SA (Hellenic Telecommunications Organisation)GRPeer16137
AS25472Nova Telecommunications & Media Single Member S.AGRPeer8255
AS198477TI SPARKLE GREECE SAGRPeer189

Prefixes

The largest blocks AS50919 originates, widest first.

Largest prefixes originated by AS50919
PrefixAddressesVisibility
178.23.72.0/212k77/78
188.164.200.0/212k77/78
194.62.224.0/221k77/78
154.57.22.0/2351277/78
82.29.50.0/2425677/78
89.116.175.0/2425677/78
2a00:1f68::/324.3B × /6463/64

Routing health

How AS50919'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

  • Valid85.7%6
  • Invalid0.0%0
  • No ROA14.3%1

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

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS50919 started or stopped in this period.

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