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AS21030Cluster LLC

RussiaRegistryRIPE NCC

As of 11th November 2026, AS21030 (Cluster LLC), a network registered in Russia with RIPE NCC, originates 13 IPv4 prefixes covering 3.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 19,852nd-largest of the 80,743 networks we see originating IPv4, and the 1,207th-largest of 4,983 in Russia. It is seen behind 18 upstream networks, most often AS62255 (BiMajLink d.o.o.) and AS39572 (DataWeb Global Group B.V.), and in front of 3 downstream networks. 7% 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

13

IPv6 prefixes

1

IPv4 addresses

3.3k

IPv6 /64s

65.5k

Upstream graph

The networks AS21030 is seen behind, one and two hops out, drawn from real AS paths.

AS21030Toward the internet core
Upstream graph for AS21030: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21030Cluster LLCThis networkAS3216PJSC VimpelcomAS35598INETCOM CARRIER L…AS39572DataWeb Global Gr…AS62255BiMajLink d.o.o.AS202984Team-Host (Cherny…AS1273Vodafone Group PLCAS3356Lumen (Level 3)AS6939Hurricane Electri…AS20485JSC TransTeleComAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS20764CJSC RASCOM

Networks observed one and two hops upstream of AS21030 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

199

adjacent networks

Upstreams
189%
Peers
17889%
Downstreams
32%

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

Upstreams of AS21030
NetworkCountryRelationshipPathsVantage pts
AS62255BiMajLink d.o.o.SIPeer26978
AS39572DataWeb Global Group B.V.NLPeer20948
AS202984Team-Host (Chernyshov Aleksandr Aleksandrovich)RUPeer17357
AS35598INETCOM CARRIER LLCRUPeer12879
AS3216PJSC VimpelcomRUPeer10862
AS20485JSC TransTeleComRUPeer8138
AS20764CJSC RASCOMRUPeer5151
AS48858JSC "ER-Telecom Holding"RUPeer3727
AS206446Cloud Lease LtdILPeer2014
AS59627Docker LTDRUPeer1919

Prefixes

The largest blocks AS21030 originates, widest first.

Largest prefixes originated by AS21030
PrefixAddressesVisibility
62.204.57.0/2425675/76
85.209.68.0/2425676/76
85.209.69.0/2425676/76
85.209.70.0/2425676/76
85.209.71.0/2425676/76
130.49.154.0/2425676/76
185.40.154.0/2425676/76
185.40.155.0/2425676/76
185.253.21.0/2425676/76
185.253.22.0/2425676/76

Routing health

How AS21030'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

  • Valid7.1%1
  • Invalid0.0%0
  • No ROA92.9%13

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 — 13 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS21030 started or stopped in this period.

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