$ query “AS137409” --type=asn → 1 result(s)

AS137409 · GSLNETWORKS-AS-AP

GSL Networks Pty LTD

AS137409 is owned by GSL Networks Pty LTD and is a major transit provider, established in Australia. The system announces a solid 143 360 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States, with additional presence in Australia and the British Virgin Islands, and smaller footprints in 80 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #49 by Reach — Top 100 by customer cone size
  • #6 by Degree — Top 100 by unique BGP neighbor count
  • #3 in Australia — Top 10 by reach within country

Basic Information

Country
🇦🇺 Australia
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
October 21, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
563 / 342
IPv6 Prefixes (raw / aggregated)
1 065 / 476
IPv4 Addresses
143 360
Largest IPv4 Prefix
/20 (4 096 addresses)
Largest IPv6 Prefix
/31
Geolocated Countries
🇺🇸 United States (34 816 IPs), 🇦🇺 Australia (19 712 IPs), 🇻🇬 British Virgin Islands (16 640 IPs) and 80 more
Prefix Changed
October 22, 2026

Reputation

Reputation
Good — 402 flagged IPs out of 143 360 total (0.28%)

Connectivity Summary

Upstream Providers
9 upstreams providing transit
Peers
6 017 networks exchanging traffic without transit
Downstream Customers
224 downstreams buying transit
Unclassified
38 unclassified BGP neighbors
Degree
6 288 unique BGP neighbors
Reach
1 550 networks in customer cone

Upstream Providers (9)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS174 — COGENT-174 (Tier-1 transit)
  • AS6461 — ZAYO-6461 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS52025 — PARADOXNETWORKS-LIMITED
  • AS3491 — PCCWG-APAC-HK (Tier-1 transit)
  • AS7474 — OPTUSCOM-AS01-AU
  • AS32097 — WII

Prefix Lists

IPv4 Prefixes (563 total)

  • 95.142.112.0/20 (4 096 addresses (/20 prefix))
  • 147.90.160.0/20 (4 096 addresses (/20 prefix))
  • 84.247.96.0/21 (2 048 addresses (/21 prefix))
  • 151.240.48.0/21 (2 048 addresses (/21 prefix))
  • 176.110.216.0/21 (2 048 addresses (/21 prefix))
  • 202.165.64.0/21 (2 048 addresses (/21 prefix))
  • 31.14.72.0/22 (1 024 addresses (/22 prefix))
  • 45.121.208.0/22 (1 024 addresses (/22 prefix))
  • 45.133.4.0/22 (1 024 addresses (/22 prefix))
  • 45.154.152.0/22 (1 024 addresses (/22 prefix))
  • 46.173.240.0/22 (1 024 addresses (/22 prefix))
  • 64.50.200.0/22 (1 024 addresses (/22 prefix))
  • 64.64.104.0/22 (1 024 addresses (/22 prefix))
  • 77.36.112.0/22 (1 024 addresses (/22 prefix))
  • 84.247.92.0/22 (1 024 addresses (/22 prefix))
  • 91.246.176.0/22 (1 024 addresses (/22 prefix))
  • 103.1.212.0/22 (1 024 addresses (/22 prefix))
  • 103.62.48.0/22 (1 024 addresses (/22 prefix))
  • 103.107.196.0/22 (1 024 addresses (/22 prefix))
  • 103.212.224.0/22 (1 024 addresses (/22 prefix))
  • 109.207.136.0/22 (1 024 addresses (/22 prefix))
  • 116.90.72.0/22 (1 024 addresses (/22 prefix))
  • 139.5.232.0/22 (1 024 addresses (/22 prefix))
  • 147.90.176.0/22 (1 024 addresses (/22 prefix))
  • 151.240.56.0/22 (1 024 addresses (/22 prefix))
  • 151.240.64.0/22 (1 024 addresses (/22 prefix))
  • 151.240.92.0/22 (1 024 addresses (/22 prefix))
  • 151.240.104.0/22 (1 024 addresses (/22 prefix))
  • 160.202.164.0/22 (1 024 addresses (/22 prefix))
  • 168.81.8.0/22 (1 024 addresses (/22 prefix))
  • 172.94.72.0/22 (1 024 addresses (/22 prefix))
  • 176.112.80.0/22 (1 024 addresses (/22 prefix))
  • 188.240.216.0/22 (1 024 addresses (/22 prefix))
  • 193.36.220.0/22 (1 024 addresses (/22 prefix))
  • 195.210.104.0/22 (1 024 addresses (/22 prefix))
  • 195.210.112.0/22 (1 024 addresses (/22 prefix))
  • 195.210.124.0/22 (1 024 addresses (/22 prefix))
  • 203.10.96.0/22 (1 024 addresses (/22 prefix))
  • 5.62.18.0/23 (512 addresses (/23 prefix))
  • 5.62.22.0/23 (512 addresses (/23 prefix))
  • 5.62.34.0/23 (512 addresses (/23 prefix))
  • 31.135.4.0/23 (512 addresses (/23 prefix))
  • 38.57.36.0/23 (512 addresses (/23 prefix))
  • 45.8.24.0/23 (512 addresses (/23 prefix))
  • 45.130.202.0/23 (512 addresses (/23 prefix))
  • 45.132.224.0/23 (512 addresses (/23 prefix))
  • 45.139.4.0/23 (512 addresses (/23 prefix))
  • 45.152.32.0/23 (512 addresses (/23 prefix))
  • 46.173.252.0/23 (512 addresses (/23 prefix))
  • 64.64.98.0/23 (512 addresses (/23 prefix))

IPv6 Prefixes (1 065 total)

  • 2a0c:b6c0::/31
  • 2a0f:e384::/31
  • 2a11:53c0::/31
  • 2a11:53c4::/31
  • 2402:5ac0::/32
  • 2606:f181::/32
  • 2a0a:ce06::/32
  • 2a0e:4202::/32
  • 2a0e:d786::/32
  • 2a0f:2740::/32
  • 2a0f:e383::/32
  • 2a11:53c2::/32
  • 2a11:f881::/32
  • 2a11:f882::/32
  • 2404:b9c0:20::/43
  • 2404:b9c0:60::/43
  • 2404:b9c0:80::/43
  • 2401:3bc0:2000::/44
  • 2401:3cc0:1800::/44
  • 2404:b9c0:10::/44
  • 2404:b9c0:d0::/44
  • 2404:b9c0:f0::/44
  • 2404:b9c0:100::/44
  • 2404:b9c0:120::/44
  • 2404:b9c0:4400::/44
  • 2401:3bc0:1000::/46
  • 2401:3bc0:100c::/46
  • 2401:3cc0:24::/46
  • 2a07:e342::/46
  • 2a07:e342:1000::/46
  • 2a07:e342:2000::/46
  • 2a07:e342:3000::/46
  • 2a07:e342:4000::/46
  • 2a07:e342:5000::/46
  • 2a07:e342:6000::/46
  • 2a07:e342:7000::/46
  • 2a07:e342:8000::/46
  • 2a07:e342:9000::/46
  • 2a07:e342:a000::/46
  • 2a07:e342:b000::/46
  • 2a0a:ce00:1000::/46
  • 2a0a:ce00:2000::/46
  • 2a0a:ce00:3000::/46
  • 2a0a:ce00:4000::/46
  • 2a0a:ce00:5000::/46
  • 2a0a:ce00:6000::/46
  • 2a0a:ce01::/46
  • 2a0a:ce01:1000::/46
  • 2a0a:ce01:2000::/46
  • 2a0a:ce01:3000::/46