subnet.im

AS200950Calibour Limited

United KingdomRegistryRIPE NCCTypeContent

As of 27th September 2026, AS200950 (Calibour Limited), a content network registered in the United Kingdom with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 12 IPv6 prefixes. By IPv4 address space that makes it the 48,558th-largest of the 79,525 networks we see originating IPv4, and the 1,369th-largest of 2,074 in the United Kingdom. It is seen behind 14 upstream networks, most often AS197071 (active 1 GmbH) and AS44592 (SkyLink Data Center BV), and in front of 2 downstream networks. 93% 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

2

IPv6 prefixes

12

IPv4 addresses

512

IPv6 /64s

4.3B

Upstream graph

The networks AS200950 is seen behind, one and two hops out, drawn from real AS paths.

AS200950Toward the internet core
Upstream graph for AS200950: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS200950Calibour LimitedThis networkAS7768Nuh Ahmet Firat t…AS44592SkyLink Data Cent…AS49581Ferdinand Zink tr…AS197071active 1 GmbHAS213438ColocaTel Inc.AS9121Turk TelekomAS44901Belcloud LTDAS33891Core-Backbone GmbHAS64289Macarne.comAS6939Hurricane Electri…AS30823aurologic GmbHAS6453TATA Communicatio…

Networks observed one and two hops upstream of AS200950 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

43

adjacent networks

Upstreams
1433%
Peers
2763%
Downstreams
25%

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

Upstreams of AS200950
NetworkCountryRelationshipPathsVantage pts
AS197071active 1 GmbHDEPeer819129
AS44592SkyLink Data Center BVNLPeer10667
AS213438ColocaTel Inc.SCPeer6049
AS49581Ferdinand Zink trading as Tube-HostingDEAdjacent4130
AS24940Hetzner Online GmbHDEPeer142
AS8298IPng Networks GmbHCHPeer142
AS32590Valve CorporationUSPeer142
AS8888xTom Pty LtdAUPeer142
AS25091IP-Max SACHPeer142
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer142

Prefixes

The largest blocks AS200950 originates, widest first.

Largest prefixes originated by AS200950
PrefixAddressesVisibility
45.86.153.0/2425681/81
150.251.32.0/2425681/81
2a0d:d906::/324.3B × /6463/64
2a0f:6284:f00::/4016.8M × /6464/64
2a0f:6284:1200::/4016.8M × /6464/64
2a14:c380:700::/4016.8M × /6464/64
2a0f:85c1:8d0::/441M × /6464/64
2a10:ccc0:100::/441M × /6463/64
2a14:7583:ffe0::/441M × /6464/64
2a14:c380:360::/441M × /6464/64

Routing health

How AS200950'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

  • Valid92.9%13
  • Invalid0.0%0
  • No ROA7.1%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%14
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 12 prefixes

  • /324.3B × /648.3%1
  • /4016.8M × /6425.0%3
  • /441M × /6433.3%4
  • /4865.5k × /6433.3%4

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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