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AS205548ZOUTER LIMITED

United KingdomRegistryRIPE NCC

As of 24th October 2026, AS205548 (ZOUTER LIMITED), a network registered in the United Kingdom with RIPE NCC, originates 27 IPv4 prefixes covering 6.9k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 13,272nd-largest of the 79,671 networks we see originating IPv4, and the 403rd-largest of 2,080 in the United Kingdom. It is seen behind 9 upstream networks, most often AS49304 (SAKURA LINK LIMITED) and AS137409 (GSL Networks Pty LTD). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

27

IPv6 prefixes

6

IPv4 addresses

6.9k

IPv6 /64s

393k

Upstream graph

The networks AS205548 is seen behind, one and two hops out, drawn from real AS paths.

AS205548Toward the internet core
Upstream graph for AS205548: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS205548ZOUTER LIMITEDThis networkAS26042FiberState, LLCAS49304SAKURA LINK LIMIT…AS137409GSL Networks Pty …AS203446SMARTNET Germany …AS216211CYBERVERSE LLCAS6461Zayo BandwidthAS9516SAKURA LINK LIMIT…AS6939Hurricane Electri…AS8529Zain Omantel Inte…AS32590Valve CorporationAS3257GTT Communication…AS6830Liberty Global Eu…

Networks observed one and two hops upstream of AS205548 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

24

adjacent networks

Upstreams
938%
Peers
1563%
Downstreams
00%

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

Upstreams of AS205548
NetworkCountryRelationshipPathsVantage pts
AS49304SAKURA LINK LIMITEDHKPeer958137
AS137409GSL Networks Pty LTDAUPeer842129
AS26042FiberState, LLCUSPeer215139
AS203446SMARTNET Germany GmbHDEPeer213137
AS216211CYBERVERSE LLCUSPeer9078
AS35280F5 Networks SARLFRPeer154
AS49544i3D.net B.VNLPeer132
AS4775Globe TelecomsPHPeer32
AS24482SG.GSSGPeer33

Prefixes

All 33

The largest blocks AS205548 originates, widest first.

Largest prefixes originated by AS205548
PrefixAddressesVisibility
14.137.230.0/2425676/76
66.92.50.0/2425676/76
78.31.249.0/2425676/76
85.149.218.0/2425676/76
85.149.220.0/2425676/76
103.19.51.0/2425676/76
103.97.200.0/2425676/76
103.97.201.0/2425676/76
140.150.236.0/2425676/76
143.14.189.0/2425676/76

Routing health

How AS205548'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%33
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more97.0%32
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.0%1

Prefix sizes

IPv4 — 27 prefixes

IPv6 — 6 prefixes

  • /4865.5k × /64100.0%6

Recent changes

Announcements that started or stopped since 24th Sept 2026.

  • Withdrawn103.19.50.0/2422nd Oct 2026
  • Announced2a0e:97c0:3f1::/4812th Oct 2026
  • Withdrawn2a0e:97c0:3f1::/487th Oct 2026

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