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AS218758Lewis Brown

United KingdomRegistryRIPE NCC

As of 11th November 2026, AS218758 (Lewis Brown), a network registered in the United Kingdom with RIPE NCC, originates 22 IPv6 prefixes. It is seen behind 4 upstream networks, most often AS8772 (Netassist International EOOD) and AS29632 (Netassist International EOOD). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 95% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

22

IPv4 addresses

0

IPv6 /64s

3.5M

Upstream graph

The networks AS218758 is seen behind, one and two hops out, drawn from real AS paths.

AS218758Toward the internet core
Upstream graph for AS218758: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS218758Lewis BrownThis networkAS8772Netassist Interna…AS29632Netassist Interna…AS47272HYEHOST LLCAS219412Lewis BrownAS3491PCCW Global (HK) …AS9002RETN LimitedAS1299Arelion (fka. Tel…AS7713PT Telkom Indones…AS204208Peravix Group LTDAS20473The Constant Comp…

Networks observed one and two hops upstream of AS218758 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

11

adjacent networks

Upstreams
436%
Peers
764%
Downstreams
00%

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

Upstreams of AS218758
NetworkCountryRelationshipPathsVantage pts
AS8772Netassist International EOODBGPeer1,13057
AS29632Netassist International EOODBGPeer1269
AS47272HYEHOST LLCUSPeer6262
AS219412Lewis BrownGBPeer4141

Prefixes

The largest blocks AS218758 originates, widest first.

Largest prefixes originated by AS218758
PrefixAddressesVisibility
2a09:3f00:3c10::/441M × /6462/63
2a0d:d904:c100::/441M × /6462/63
2a14:c380:2a::/47131k × /6462/63
2a09:3f00:3c00::/4865.5k × /6463/63
2a09:3f00:3c01::/4865.5k × /6463/63
2a09:3f00:3c02::/4865.5k × /6463/63
2a09:3f00:3c03::/4865.5k × /6463/63
2a09:3f00:3c04::/4865.5k × /6463/63
2a09:3f00:3c05::/4865.5k × /6463/63
2a09:3f00:3c06::/4865.5k × /6463/63

Routing health

How AS218758'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%22
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more95.5%21
  • Partially propagated40% to 90%4.5%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 22 prefixes

  • /441M × /649.1%2
  • /47131k × /644.5%1
  • /4865.5k × /6486.4%19

Recent changes

Announcements that started or stopped since 12th Oct 2026.

21 announced and 21 withdrawn in all; the most recent are shown.

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