Autonomous system
AS10127 CLSA-AS-AP CLSA Ltd
Unclassified ARIN
Summary
CLSA Ltd
CLSA-AS-AP belongs to CLSA Ltd, the Hong Kong capital-markets and brokerage group founded in 1986 as Credit Lyonnais Securities Asia and wholly owned by CITIC Securities since 2013. AS10127 is a bank's own corporate network.
What it's used for
CLSA's own trading, research and office connectivity across its Asia-Pacific offices. The AS announces 4 IPv4 prefixes totalling 1,024 addresses (202.124.28.0/24 through 202.124.31.0/24, a legacy APNIC /22 deaggregated into four /24s) and no IPv6. Deaggregating a /22 into its component /24s is a traffic-engineering move, not a growth one: it lets a firm steer inbound flows across different upstreams per block, which is exactly what a securities house with latency-sensitive market-data and order-routing links cares about.
Notable
This is an enterprise network in the financial sector, and the shape says so. 1,024 addresses against 4 observed BGP neighbours is far too small and too sparsely connected to be a provider: a wholesale carrier peers with hundreds to thousands of ASes, and a hosting business would need far more space to sell. A handful of upstreams and a single legacy /22 is a company multihoming for its own resilience. Geolocate this space to CLSA offices and their internet-facing edge, not to end users.
Interesting
The registered name outlived a rebrand cycle. CITIC has said the CLSA brand will be retired in favour of CITIC Securities International, so this AS is a reminder that registry names track paperwork, not marketing.
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 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| HK | Hong Kong | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10127- Registry name
- CLSA-AS-AP
- Registrant
- CLSA Ltd
- Abuse contact
- robert.ogrady@clsa.com
- Registered
- 2008-09-04
- Last changed
- 2020-06-11
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS10127
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 7 naming AS10127
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 1,783 prefixes, as published 2026-10-17. 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