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AS59455Clearstream Technology ltd

United KingdomRegistryRIPE NCC

As of 10th November 2026, AS59455 (Clearstream Technology ltd), a network registered in the United Kingdom with RIPE NCC, originates 8 IPv4 prefixes covering 5.9k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 14,758th-largest of the 80,723 networks we see originating IPv4, and the 436th-largest of 2,122 in the United Kingdom. It is seen behind 31 upstream networks, most often AS8801 (Rocket Fibre Ltd) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 1 downstream network. 91% 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

8

IPv6 prefixes

3

IPv4 addresses

5.9k

IPv6 /64s

34.4B

Upstream graph

The networks AS59455 is seen behind, one and two hops out, drawn from real AS paths.

AS59455Toward the internet core
Upstream graph for AS59455: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS59455Clearstream Techn…This networkAS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS7195EdgeUnoAS8801Rocket Fibre LtdAS14537Continent 8 LLCAS13030Init7 (Switzerlan…AS16552Tiggee LLCAS20130Depaul UniversityAS132337AxclusiveAS6453TATA Communicatio…AS9002RETN LimitedAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS59455 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

133

adjacent networks

Upstreams
3123%
Peers
10176%
Downstreams
11%

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

Upstreams of AS59455
NetworkCountryRelationshipPathsVantage pts
AS8801Rocket Fibre LtdGBPeer30161
AS1299Arelion (fka. Telia Carrier)SEPeer27269
AS6939Hurricane Electric LLCUSPeer358
AS14537Continent 8 LLCUSPeer163
AS52075Wifirst S.A.S.FRPeer132
AS7195EdgeUnoCOPeer133
AS58511Swoop (Anycast Global Backbone)AUPeer122
AS25091IP-Max SACHPeer123
AS3170VeloxServ Communications LtdGBPeer122
AS132337AxclusiveSGAdjacent112

Prefixes

The largest blocks AS59455 originates, widest first.

Largest prefixes originated by AS59455
PrefixAddressesVisibility
46.17.208.0/212k76/76
185.23.52.0/221k76/76
185.33.192.0/221k76/76
185.79.108.0/2351276/76
193.33.116.0/2351276/76
193.111.33.0/2425676/76
194.26.198.0/2425676/76
222.167.193.0/2425676/76
2a04:2340::/2934.4B × /6463/63
2a06:9801:21a::/4865.5k × /6462/63

Routing health

How AS59455'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

  • Valid90.9%10
  • Invalid0.0%0
  • No ROA9.1%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 8 prefixes

IPv6 — 3 prefixes

  • /2934.4B × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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