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

AS137409 — GSLNETWORKS-AS-AP

GSL Networks Pty LTD

AS137409 is a major transit provider operated by GSL Networks Pty LTD, based in Australia. The network announces a solid 106 752 IPv4 addresses. Supports IPv6.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #11 by Degree — Top 100 by unique BGP neighbor count
  • #8 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
March 04, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
421 / 242
IPv6 Prefixes (raw / aggregated)
1 127 / 501
IPv4 Addresses
106 752
Largest IPv4 Prefix
/21 (2 048 addresses)
Largest IPv6 Prefix
/31
Geolocated Countries
🇺🇸 US (102 IPs), 🇻🇬 VG (45 IPs), 🇸🇬 SG (39 IPs), 🇦🇺 AU, 🇷🇴 RO, 🇳🇱 NL, 🇯🇵 JP, 🇬🇧 GB, 🇳🇿 NZ, 🇭🇰 HK, 🇫🇷 FR, 🇩🇪 DE, 🇱🇹 LT, 🇵🇭 PH and 30 more
Prefix Changed
March 04, 2026

Reputation

Reputation
Shady — 1 387 flagged IPs out of 106 752 total (1.30%)

Connectivity Summary

Upstream Providers
6 upstream autonomous systems providing transit
Peers
4 226 autonomous systems exchanging traffic without transit fees
Downstream Customers
175 downstream autonomous systems buying transit
Degree
4 447 unique BGP neighbors (providers + customers + peers)
Reach
19 544 — customer cone size measuring network influence
Degree Rank
#11
Reach Rank
#397
Country Rank
#8

Upstream Providers (6)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS6461 — ZAYO-6461 (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS52025 — PARADOXNETWORKS-LIMITED
  • AS7474 — OPTUSCOM-AS01-AU

Prefix Lists

IPv4 Prefixes (421 total)

  • 84.247.96.0/21 (2 048 addresses)
  • 151.240.48.0/21 (2 048 addresses)
  • 176.110.216.0/21 (2 048 addresses)
  • 202.165.64.0/21 (2 048 addresses)
  • 217.217.112.0/21 (2 048 addresses)
  • 45.121.208.0/22 (1 024 addresses)
  • 45.133.4.0/22 (1 024 addresses)
  • 45.154.152.0/22 (1 024 addresses)
  • 46.173.240.0/22 (1 024 addresses)
  • 64.50.200.0/22 (1 024 addresses)
  • 64.64.104.0/22 (1 024 addresses)
  • 77.36.112.0/22 (1 024 addresses)
  • 84.247.92.0/22 (1 024 addresses)
  • 91.246.176.0/22 (1 024 addresses)
  • 103.1.212.0/22 (1 024 addresses)
  • 103.62.48.0/22 (1 024 addresses)
  • 103.107.196.0/22 (1 024 addresses)
  • 103.212.224.0/22 (1 024 addresses)
  • 109.207.136.0/22 (1 024 addresses)
  • 116.90.72.0/22 (1 024 addresses)
  • 139.5.232.0/22 (1 024 addresses)
  • 151.240.56.0/22 (1 024 addresses)
  • 151.240.64.0/22 (1 024 addresses)
  • 151.240.92.0/22 (1 024 addresses)
  • 151.240.104.0/22 (1 024 addresses)
  • 160.202.164.0/22 (1 024 addresses)
  • 168.81.8.0/22 (1 024 addresses)
  • 172.94.72.0/22 (1 024 addresses)
  • 176.112.80.0/22 (1 024 addresses)
  • 188.240.216.0/22 (1 024 addresses)
  • 193.36.220.0/22 (1 024 addresses)
  • 195.210.104.0/22 (1 024 addresses)
  • 195.210.112.0/22 (1 024 addresses)
  • 195.210.124.0/22 (1 024 addresses)
  • 203.10.96.0/22 (1 024 addresses)
  • 31.135.4.0/23 (512 addresses)
  • 38.57.36.0/23 (512 addresses)
  • 45.8.24.0/23 (512 addresses)
  • 45.130.202.0/23 (512 addresses)
  • 45.132.224.0/23 (512 addresses)
  • 45.139.4.0/23 (512 addresses)
  • 45.152.32.0/23 (512 addresses)
  • 46.173.252.0/23 (512 addresses)
  • 64.64.98.0/23 (512 addresses)
  • 67.210.124.0/23 (512 addresses)
  • 84.247.90.0/23 (512 addresses)
  • 85.237.90.0/23 (512 addresses)
  • 89.34.126.0/23 (512 addresses)
  • 91.193.28.0/23 (512 addresses)
  • 91.232.226.0/23 (512 addresses)

IPv6 Prefixes (1 127 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
  • 2a0f:31c1:f900::/40
  • 2404:b9c0:20::/43
  • 2404:b9c0:60::/43
  • 2404:b9c0:80::/43
  • 2a0f:31c1:c700::/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
  • 2a0f:31c1:1300::/45
  • 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