subnet.im

AS5459London Internet Exchange Ltd.

United KingdomRegistryRIPE NCC

As of 22nd October 2026, AS5459 (London Internet Exchange Ltd.), a network registered in the United Kingdom with RIPE NCC, originates 3 IPv4 prefixes covering 3.1k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 20,141st-largest of the 79,663 networks we see originating IPv4, and the 629th-largest of 2,078 in the United Kingdom. It is seen behind 33 upstream networks, most often AS174 (Cogent Communications, LLC) and AS5413 (Wavenet Limited), and in front of 4 downstream networks. Every one of its announcements has 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

3

IPv6 prefixes

1

IPv4 addresses

3.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS5459 is seen behind, one and two hops out, drawn from real AS paths.

AS5459Toward the internet core
Upstream graph for AS5459: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS5459London Internet E…This networkAS174Cogent Communicat…AS702Verizon Business …AS5413Wavenet LimitedAS6939Hurricane Electri…AS9002RETN LimitedAS151326DCConnect Communi…AS701Verizon BusinessAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS20130Depaul UniversityAS132337AxclusiveAS6453TATA Communicatio…

Networks observed one and two hops upstream of AS5459 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

149

adjacent networks

Upstreams
3322%
Peers
11275%
Downstreams
43%

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

Upstreams of AS5459
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer11239
AS5413Wavenet LimitedGBPeer8423
AS702Verizon Business - EMEAUSPeer277
AS6939Hurricane Electric LLCUSPeer1911
AS9002RETN LimitedGBPeer157
AS25091IP-Max SACHPeer95
AS18106Viewqwest Pte LtdSGPeer84
AS6830Liberty Global Europe Holding B.V.EUPeer73
AS14537Continent 8 LLCUSPeer53
AS7195EdgeUnoCOPeer42

Prefixes

The largest blocks AS5459 originates, widest first.

Largest prefixes originated by AS5459
PrefixAddressesVisibility
195.66.232.0/221k76/77
195.66.240.0/221k76/77
195.66.248.0/221k76/77
2a01:40::/324.3B × /6463/64

Routing health

How AS5459'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

  • Valid100.0%4
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS5459 started or stopped in this period.

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