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AS218805Stacklayer Communications Limited

United KingdomRegistryRIPE NCCTypeContent

As of 11th November 2026, AS218805 (Stacklayer Communications Limited), a content network registered in the United Kingdom with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 49,320th-largest of the 80,747 networks we see originating IPv4, and the 1,392nd-largest of 2,122 in the United Kingdom. It is seen behind 11 upstream networks, most often AS215638 (Cilix Limited) and AS6939 (Hurricane Electric LLC), and in front of 3 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

2

IPv6 prefixes

2

IPv4 addresses

512

IPv6 /64s

269M

Upstream graph

The networks AS218805 is seen behind, one and two hops out, drawn from real AS paths.

AS218805Toward the internet core
Upstream graph for AS218805: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS218805Stacklayer Commun…This networkAS6939Hurricane Electri…AS24482SG.GSAS24940Hetzner Online Gm…AS212396FyfeWeb LtdAS215638Cilix LimitedAS20130Depaul UniversityAS132337AxclusiveAS38623Metfone (Viettel …AS215859Hetzner Cloud - S…AS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS9002RETN Limited

Networks observed one and two hops upstream of AS218805 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

80

adjacent networks

Upstreams
1114%
Peers
6683%
Downstreams
34%

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

Upstreams of AS218805
NetworkCountryRelationshipPathsVantage pts
AS215638Cilix LimitedGBPeer21092
AS6939Hurricane Electric LLCUSPeer19348
AS212396FyfeWeb LtdGBPeer12382
AS24940Hetzner Online GmbHDEPeer72
AS52075Wifirst S.A.S.FRPeer72
AS49544i3D.net B.VNLPeer72
AS24482SG.GSSGPeer72
AS39122Blacknight Internet Solutions LimitedIEPeer72
AS3170VeloxServ Communications LtdGBPeer41
AS132337AxclusiveSGAdjacent21

Prefixes

The largest blocks AS218805 originates, widest first.

Largest prefixes originated by AS218805
PrefixAddressesVisibility
185.67.22.0/2425676/76
222.167.221.0/2425676/76
2a0f:6282:5000::/36268M × /6462/63
2a14:f705:c876::/4865.5k × /6462/63

Routing health

How AS218805'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 — 2 prefixes

IPv6 — 2 prefixes

  • /36268M × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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