asn.dev

Autonomous system

AS21371 EQUINIX-UK-ASN

Unclassified RIPE

IPv4 addresses 768 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly GB
Exchanges 1 recorded by PCH
Upstreams 1 6 downstream
Flagged prefixes 0 none

Summary

Equinix

United Kingdom · AI-generated

hosting datacenter enterprise

EQUINIX-UK-ASN is operated by Equinix (Services) Limited.

What it's used for

  • The address space carries enterprise and data center infrastructure, evidenced by the netname Slough and registrant Salesforce, Inc. for the prefix 151.106.193.0/24.
  • The AS announces 768 IPv4 addresses across 2 prefixes with 9 observed neighbours, indicating a role focused on hosting and interconnection rather than broad residential access or transit.

Notable

  • Registrants include Abuse-C Role for the 185.191.208.0/23 block and Salesforce, Inc. for the 151.106.193.0/24 block, showing a mix of internal Equinix management and specific enterprise tenant allocations.
  • The inventory consists of two distinct IPv4 prefixes, one associated with Equinix's Slough facility and the other with Salesforce, reflecting a finely subdivided corporate and tenant estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
LINX LON1London, United Kingdom195.66.224.187

Transit providers

1 upstream, 6 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS15830Equinix (EMEA) Acquisition Enterprises B.V.120

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
GBUnited Kingdom2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS21371
Registry name
EQUINIX-UK-ASN
Registrant
HRW-NOC
Abuse contact
smc@equinix.com
Registered
2002-01-10
Last changed
2021-10-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
6 authorising AS21371
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
12 naming AS21371

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,772 prefixes, as published 2026-10-15. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check