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AS50490Sinal A/S

DenmarkRegistryRIPE NCC

As of 27th September 2026, AS50490 (Sinal A/S), a network registered in Denmark with RIPE NCC, originates 2 IPv4 prefixes covering 1.5k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 31,110th-largest of the 79,523 networks we see originating IPv4, and the 124th-largest of 328 in Denmark. It is seen behind 1 upstream network, most often AS39642 (Sinal A/S). 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

2

IPv6 prefixes

1

IPv4 addresses

1.5k

IPv6 /64s

4.3B

Upstream graph

The networks AS50490 is seen behind, one and two hops out, drawn from real AS paths.

AS50490Toward the internet core
Upstream graph for AS50490: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS50490Sinal A/SThis networkAS39642Sinal A/SAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS50490 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS50490
NetworkCountryRelationshipPathsVantage pts
AS39642Sinal A/SDKPeer226145

Prefixes

The largest blocks AS50490 originates, widest first.

Largest prefixes originated by AS50490
PrefixAddressesVisibility
178.21.92.0/221k81/81
178.21.90.0/2351281/81
2a00:1f9f::/324.3B × /6464/64

Routing health

How AS50490'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%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS50490 started or stopped in this period.

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