subnet.im

AS209735Lagrange Cloud Technologies Limited

United KingdomRegistryRIPE NCC

As of 11th November 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 49,318th-largest of the 80,743 networks we see originating IPv4, and the 1,392nd-largest of 2,122 in the United Kingdom. It is seen behind 7 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS44355 (Colocation Ltd), and in front of 97 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 networkAS6939Hurricane Electri…AS44355Colocation LtdAS49544i3D.net B.VAS52075Wifirst S.A.S.AS207841Inferno Communica…AS20130Depaul UniversityAS132337AxclusiveAS3356Lumen (Level 3)AS2914NTT America, Inc.AS61049Exascale LtdAS6762Telecom Italia Sp…AS137409GSL 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

465

adjacent networks

Upstreams
72%
Peers
36178%
Downstreams
9721%

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

Upstreams of AS209735
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer13,68966
AS44355Colocation LtdGBPeer1,059133
AS207841Inferno Communications LtdGBPeer2511
AS49544i3D.net B.VNLPeer102
AS52075Wifirst S.A.S.FRPeer52
AS39122Blacknight Internet Solutions LimitedIEPeer42
AS3170VeloxServ Communications LtdGBPeer42

Prefixes

The largest blocks AS209735 originates, widest first.

Largest prefixes originated by AS209735
PrefixAddressesVisibility
85.155.100.0/2425676/76
103.146.103.0/2425676/76
2a06:de01:f4::/4865.5k × /6462/63
2a07:54c2:b00b::/4865.5k × /6422/63
2a0a:6044:b343::/4865.5k × /641/63
2a0f:85c1:80::/4865.5k × /6462/63
2a0f:85c1:81::/4865.5k × /6462/63
2a0f:85c1:398::/4865.5k × /641/63

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 12th Oct 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.