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AS21371EQUINIX (SERVICES) LIMITED

United KingdomRegistryRIPE NCC

As of 10th November 2026, AS21371 (EQUINIX (SERVICES) LIMITED), a network registered in the United Kingdom with RIPE NCC, originates 2 IPv4 prefixes covering 768 addresses. By IPv4 address space that makes it the 45,664th-largest of the 80,733 networks we see originating IPv4, and the 1,273rd-largest of 2,122 in the United Kingdom. It is seen behind 1 upstream network, most often AS15830 (Equinix, Inc.), and in front of 6 downstream networks. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

0

IPv4 addresses

768

IPv6 /64s

0

Upstream graph

The networks AS21371 is seen behind, one and two hops out, drawn from real AS paths.

AS21371Toward the internet core
Upstream graph for AS21371: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21371EQUINIX (SERVICES…This networkAS15830Equinix, Inc.AS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS21371 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

15

adjacent networks

Upstreams
17%
Peers
853%
Downstreams
640%

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

Upstreams of AS21371
NetworkCountryRelationshipPathsVantage pts
AS15830Equinix, Inc.NLPeer84676

Prefixes

The largest blocks AS21371 originates, widest first.

Largest prefixes originated by AS21371
PrefixAddressesVisibility
185.191.208.0/2351276/76
151.106.193.0/2425676/76

Routing health

How AS21371'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%2

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS21371 started or stopped in this period.

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