Autonomous system
AS29575 LONDSTOCK-AS London Stock Exchange PLC
Unclassified RIPE
Summary
London Stock Exchange Group
business financial exchange infrastructure
The AS handle LONDSTOCK-AS is held by London Stock Exchange Group PLC.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by netnames such as
LONSTKEXandLSEG-Croydon-DMZ. - The inventory consists of 1536 IPv4 addresses across 3 prefixes, with 4 observed neighbours, indicating a small, self-contained corporate network rather than a transit or access provider.
Notable
- Registrants include both London Stock Exchange PLC and Refinitiv IP Admin, reflecting the corporate history of the group.
- London Stock Exchange Group plc (LSEG) is the result of the merger between the London Stock Exchange and Refinitiv, which explains the mixed registrant data.
- The address inventory is finely subdivided into specific site and DMZ segments, consistent with an internal corporate 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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 1.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS29575- Registry name
- LONDSTOCK-AS
- Registrant
- LSEG-MNT
- Abuse contact
- internet@lchclearnet.com
- Registered
- 2003-10-14
- Last changed
- 2023-02-17
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 7 with no ROA
- ROAs
- 0 authorising AS29575
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 12 naming AS29575
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: 448 networks and 1,851 prefixes, as published 2026-11-04. 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