asn.dev

Autonomous system

AS137409 GSLNETWORKS-AS-AP GSL Networks Pty LTD

Unclassified DROP-listed space APNIC NSP

IPv4 addresses 146K 350 prefixes
IPv6 prefixes 658 counted as prefixes, not addresses
Countries 1 mostly AU
Exchanges 69 recorded by PCH
Upstreams 71 239 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 69 exchanges in 19 countries, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.213.24
DE-CIX FrankfurtFrankfurt, Germany80.81.197.29
LINX LON1London, United Kingdom195.66.231.9
AMS-IX AmsterdamAmsterdam, Netherlands80.249.214.204
Neutral Internet ExchangeAmsterdam, Netherlands193.239.117.133
MSK-IX MoscowMoscow, Russia195.208.210.145
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.229.213
Milan Internet ExchangeMilan, Italy217.29.66.247

Transit providers

71 upstream, 239 downstream and 500 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC12,729
AS6461Zayo Bandwidth5,090
AS174Cogent Communications, LLC3,608
AS34549meerfarbig GmbH & Co. KG2,541
AS29632Netassist International EOOD2,082
AS22652Videotron Ltee2,000
AS24482SG.GS1,616
AS14907Wikimedia Foundation Inc.1,606

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-12, 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 350 prefixes · 146K addresses IPv6 658 prefixes

CountryNamePrefixes
AUAustralia1,008

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS137409
Registry name
GSLNETWORKS-AS-AP
Registrant
GSL Networks Pty LTD
Abuse contact
noc@gslnetworks.com.au
Registered
2018-01-15
Last changed
2020-06-22
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Global Secure Layer
Also known as
Global Secure Layer, GSL Networks
Network type
NSP
Scope
Global
Traffic ratio
Balanced
Peering policy
Open
IRR as-set
AS137409:AS-ALL
Present at
79 exchanges
Facilities
101 facilities
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

Full detail
RPKI
89% valid · 1,448 valid, 188 with no ROA
ROAs
595 authorising AS137409
ASPA
no ASPA record
IRR
99.5% registered · 1,628 of 1,636 announcements 2 other origin
Route objects
992 naming AS137409

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.

12 DROP matches Announced space overlapping the DROP prefix list.

AnnouncedDROP entryRecord
46.173.240.0/2246.173.240.0/20SBL266465
46.173.252.0/2346.173.240.0/20SBL266465
77.36.112.0/2277.36.112.0/21SBL638846
91.200.133.0/2491.200.133.0/24SBL494045
91.233.0.0/2391.233.0.0/23SBL442807
91.246.176.0/2291.246.176.0/21SBL638847
168.81.8.0/22168.80.0.0/15SBL458208
172.111.161.0/24172.111.128.0/17SBL688605
172.111.225.0/24172.111.128.0/17SBL688605
185.161.148.0/24185.161.148.0/22SBL463010
185.161.150.0/24185.161.148.0/22SBL463010
185.238.176.0/24185.238.176.0/22SBL463012

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 436 networks and 1,769 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

1 IC3 indicators addresses in this network appear in FBI IC3 cybersecurity advisories.

PrefixAdvisoryPublished
103.107.198.117Chinese Government-linked Cyber Threat Actors Combine Automated and Hands-on Hacking Tools to Steal Sensitive Data2026-10-08

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