subnet.im

AS50673Serverius Holding B.V.

NetherlandsRegistryRIPE NCCTypeContent

As of 11th November 2026, AS50673 (Serverius Holding B.V.), a content network registered in the Netherlands with RIPE NCC, originates 71 IPv4 prefixes covering 62.5k addresses and 12 IPv6 prefixes. By IPv4 address space that makes it the 4,110th-largest of the 80,747 networks we see originating IPv4, and the 50th-largest of 1,042 in the Netherlands. It is seen behind 43 upstream networks, most often AS33891 (Core-Backbone GmbH) and AS6453 (TATA Communications (America) Inc), and in front of 95 downstream networks. 76% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 99% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

71

IPv6 prefixes

12

IPv4 addresses

62.5k

IPv6 /64s

64.4B

Upstream graph

The networks AS50673 is seen behind, one and two hops out, drawn from real AS paths.

AS50673Toward the internet core
Upstream graph for AS50673: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS50673Serverius Holding…This networkAS174Cogent Communicat…AS6453TATA Communicatio…AS6830Liberty Global Eu…AS9002RETN LimitedAS33891Core-Backbone GmbHAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS8220COLTAS35280F5 Networks SARLAS57866Fusix Networks B.…AS6667Elisa OyjAS24940Hetzner Online Gm…

Networks observed one and two hops upstream of AS50673 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

1,468

adjacent networks

Upstreams
433%
Peers
1,33091%
Downstreams
956%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 43.

Upstreams of AS50673
NetworkCountryRelationshipPathsVantage pts
AS33891Core-Backbone GmbHDEPeer15,01568
AS6453TATA Communications (America) IncUSPeer9,06177
AS6830Liberty Global Europe Holding B.V.EUPeer5,065114
AS174Cogent Communications, LLCUSPeer3,74470
AS9002RETN LimitedGBPeer2,029103
AS6762Telecom Italia Sparkle (Seabone)ITPeer1,84417
AS7713PT Telkom Indonesia TbkIDPeer1,4453
AS6939Hurricane Electric LLCUSPeer1,41918
AS13030Init7 (Switzerland) Ltd.CHPeer1,2964
AS18106Viewqwest Pte LtdSGPeer9212

Prefixes

All 83

The largest blocks AS50673 originates, widest first.

Largest prefixes originated by AS50673
PrefixAddressesVisibility
5.255.64.0/198.2k76/76
46.249.32.0/198.2k76/76
93.158.208.0/204.1k76/76
178.19.112.0/204.1k76/76
5.178.64.0/212k76/76
46.175.144.0/212k76/76
93.158.200.0/212k76/76
178.21.16.0/212k76/76
5.188.12.0/221k76/76
45.94.200.0/221k76/76

Routing health

How AS50673'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

  • Valid75.9%63
  • Invalid0.0%0
  • No ROA24.1%20

Propagation

  • Globally propagated90% of full-feed peers or more98.8%82
  • Partially propagated40% to 90%1.2%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 71 prefixes

IPv6 — 12 prefixes

  • /2934.4B × /648.3%1
  • /324.3B × /6458.3%7
  • /4865.5k × /6433.3%4

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Withdrawn2a09:4d41::/322nd Nov 2026
  • Withdrawn45.155.7.0/242nd Nov 2026
  • Withdrawn91.208.52.0/242nd Nov 2026

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