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AS9002RETN Limited

United KingdomRegistryRIPE NCCTypeCarrier

As of 10th November 2026, AS9002 (RETN Limited), a transit carrier registered in the United Kingdom with RIPE NCC, originates 19 IPv4 prefixes covering 27.9k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 5,987th-largest of the 80,723 networks we see originating IPv4, and the 166th-largest of 2,122 in the United Kingdom. It is seen behind 94 upstream networks, most often AS3356 (Lumen (Level 3)) and AS6667 (Elisa Oyj), and in front of 2,856 downstream networks. 90% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 75% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

19

IPv6 prefixes

1

IPv4 addresses

27.9k

IPv6 /64s

4.3B

Upstream graph

The networks AS9002 is seen behind, one and two hops out, drawn from real AS paths.

AS9002Toward the internet core
Upstream graph for AS9002: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS9002RETN LimitedThis networkAS3356Lumen (Level 3)AS6453TATA Communicatio…AS6667Elisa OyjAS12956Telxius (Telefoni…AS16552Tiggee LLCAS3549Lumen (fka. Globa…AS8220COLTAS35280F5 Networks SARLAS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS32590Valve Corporation

Networks observed one and two hops upstream of AS9002 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

5,990

adjacent networks

Upstreams
942%
Peers
3,04051%
Downstreams
2,85648%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 94.

Upstreams of AS9002
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer173,93377
AS6667Elisa OyjFIPeer168,9744
AS6453TATA Communications (America) IncUSPeer164,05032
AS16552Tiggee LLCUSPeer129,6404
AS12956Telxius (Telefonica Global)ESPeer113,62514
AS49544i3D.net B.VNLPeer69,5814
AS2914NTT America, Inc.USPeer61,00048
AS5413Wavenet LimitedGBPeer57,4922
AS37271Workonline Communications(Pty) LtdZAPeer56,6721
AS132337AxclusiveSGAdjacent56,3702

Prefixes

The largest blocks AS9002 originates, widest first.

Largest prefixes originated by AS9002
PrefixAddressesVisibility
87.245.224.0/198.2k76/76
139.45.192.0/198.2k76/76
87.245.208.0/212k76/76
31.128.32.0/221k1/76
89.19.36.0/221k76/76
94.158.240.0/221k76/76
185.13.152.0/221k76/76
185.82.8.0/221k76/76
193.109.100.0/221k76/76
104.121.64.0/235121/76

Routing health

How AS9002'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

  • Valid90.0%18
  • Invalid5.0%1
  • No ROA5.0%1

Propagation

  • Globally propagated90% of full-feed peers or more75.0%15
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%25.0%5

Prefix sizes

IPv4 — 19 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

  • Announced104.121.64.0/2329th Oct 2026
  • Announced104.121.66.0/2329th Oct 2026
  • Announced104.121.68.0/2329th Oct 2026
  • Announced23.56.98.0/2429th Oct 2026
  • Announced31.128.32.0/2229th Oct 2026
  • Withdrawn172.31.255.79/3216th Oct 2026
  • Announced172.31.255.79/3216th Oct 2026
  • Withdrawn104.121.64.0/2314th Oct 2026
  • Withdrawn104.121.66.0/2314th Oct 2026
  • Withdrawn104.121.68.0/2314th Oct 2026
  • Withdrawn23.56.98.0/2414th Oct 2026
  • Withdrawn46.46.144.9/3212th Oct 2026

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