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AS209735Lagrange Cloud Technologies Limited

United KingdomRegistryRIPE NCC

As of 26th September 2026, AS209735 (Lagrange Cloud Technologies Limited), a network registered in the United Kingdom with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 48,553rd-largest of the 79,516 networks we see originating IPv4, and the 1,369th-largest of 2,074 in the United Kingdom. It is seen behind 12 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS44355 (Colocation Ltd), and in front of 87 downstream networks. 63% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 63% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

2

IPv6 prefixes

6

IPv4 addresses

512

IPv6 /64s

393k

Upstream graph

The networks AS209735 is seen behind, one and two hops out, drawn from real AS paths.

AS209735Toward the internet core
Upstream graph for AS209735: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS209735Lagrange Cloud Te…This networkAS3170VeloxServ Communi…AS6939Hurricane Electri…AS44355Colocation LtdAS49544i3D.net B.VAS207841Inferno Communica…AS3257GTT Communication…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)AS61049Exascale LtdAS137409GSL Networks Pty …

Networks observed one and two hops upstream of AS209735 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

220

adjacent networks

Upstreams
125%
Peers
12155%
Downstreams
8740%

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

Upstreams of AS209735
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer11,63871
AS44355Colocation LtdGBPeer1,00192
AS207841Inferno Communications LtdGBPeer2115
AS49544i3D.net B.VNLPeer122
AS3170VeloxServ Communications LtdGBPeer62
AS52075Wifirst S.A.S.FRPeer62
AS39122Blacknight Internet Solutions LimitedIEPeer62
AS132337AxclusiveSGPeer21
AS33891Core-Backbone GmbHDEPeer22
AS216265ARISTO NETWORKS LTDGBAdjacent11

Prefixes

The largest blocks AS209735 originates, widest first.

Largest prefixes originated by AS209735
PrefixAddressesVisibility
85.155.100.0/2425681/81
103.146.103.0/2425681/81
2a06:de01:f4::/4865.5k × /6463/64
2a07:54c2:b00b::/4865.5k × /6421/64
2a0a:6044:b343::/4865.5k × /641/64
2a0f:85c1:80::/4865.5k × /6463/64
2a0f:85c1:81::/4865.5k × /6463/64
2a0f:85c1:398::/4865.5k × /641/64

Routing health

How AS209735'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

  • Valid62.5%5
  • Invalid25.0%2
  • No ROA12.5%1

Propagation

  • Globally propagated90% of full-feed peers or more62.5%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%37.5%3

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 6 prefixes

  • /4865.5k × /64100.0%6

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS209735 started or stopped in this period.

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