Autonomous system
AS7578 GSL Global Secure Layer
Hosting APNIC Content
Summary
Global Secure Layer
transit hosting legacy
Global Secure Layer (GSL), an Australian-owned network operator that sells IP transit and inline, anycast DDoS mitigation, with points of presence across Australia, Asia, Europe and North America.
What it's used for
- Carrier IP transit and DDoS-scrubbing for customers whose traffic is routed through GSL's network, plus protected hosting on GSL-assigned addresses.
- The reverse DNS on its space is almost entirely router and backbone infrastructure under
globalsecurelayer.comandgslnetworks.com, with names encoding the site and device role at Equinix and other facilities in Sydney, Melbourne, Adelaide, Brisbane, Singapore, Tokyo, Guam, Frankfurt, Amsterdam, Dallas, Los Angeles and New York.
Notable
- An IP here is network or protected-service infrastructure, not a consumer broadband subscriber. Addresses without a router name resolve to a generic
unknown.globalsecurelayer.com, which is typical of scrubbed or customer-facing space rather than an eyeball pool. - The announced inventory is small (a few thousand IPv4) but is drawn from several registries, which is normal for an operator that runs a global anycast edge rather than a broker signal.
Interesting
- GSL markets specifically to Australian government and public-sector customers on data-sovereignty grounds, so some of the traffic behind this AS is scrubbed government service traffic rather than the operator's own.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Sydney | Sydney, Australia | 45.127.172.21 |
Transit providers
1 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS137409 | GSL Networks Pty LTD | 600 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 2.82K addresses IPv6 217 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AU | Australia | 224 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS7578- Registry name
- GSL
- Registrant
- GSL Networks Pty LTD
- Abuse contact
- noc@gslnetworks.com.au
- Registered
- 2022-06-20
- Last changed
- 2022-06-21
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Global Secure Layer Access
- Also known as
- GSL
- Network type
- Content
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Open
- Website
- https://globalsecurelayer.com
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 13 with no ROA
- ROAs
- 0 authorising AS7578
- ASPA
- no ASPA record
- IRR
- 62% registered · 8 of 13 announcements 4 other origin
- Route objects
- 41 naming AS7578
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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