$ query “AS9002” --type=asn → 1 result(s)

AS9002 · RETN-AS

RETN Limited

AS9002 is run by RETN Limited and is a major transit provider, established in the United Kingdom in 2008. The system announces a respectable 43 264 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Latvia, with additional presence in Australia and the Netherlands, and smaller footprints in 9 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #14 by Reach — Top 100 by customer cone size
  • #24 by Degree — Top 100 by unique BGP neighbor count
  • #1 in United Kingdom — Top 10 by reach within country

Basic Information

Country
🇬🇧 United Kingdom
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
March 25, 2008
Last Changed
March 04, 2026
Last Seen
May 15, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
66 / 55
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
43 264
Largest IPv4 Prefix
/19 (8 192 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇱🇻 Latvia (30 208 IPs), 🇦🇺 Australia (8 448 IPs), 🇳🇱 Netherlands (6 176 IPs) and 9 more
Prefix Changed
May 14, 2026

Reputation

Reputation
Good — 4 flagged IPs out of 43 264 total (0.01%)

Connectivity Summary

Upstream Providers
2 upstreams providing transit
Peers
1 013 networks exchanging traffic without transit
Downstream Customers
1 198 downstreams buying transit
Unclassified
818 unclassified BGP neighbors
Degree
3 031 unique BGP neighbors
Reach
55 220 networks in customer cone

Upstream Providers (2)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (66 total)

  • 87.245.224.0/19 (8 192 addresses (/19 prefix))
  • 139.45.192.0/19 (8 192 addresses (/19 prefix))
  • 155.212.224.0/21 (2 048 addresses (/21 prefix))
  • 87.245.208.0/21 (2 048 addresses (/21 prefix))
  • 193.109.100.0/22 (1 024 addresses (/22 prefix))
  • 74.112.156.0/22 (1 024 addresses (/22 prefix))
  • 185.82.8.0/22 (1 024 addresses (/22 prefix))
  • 185.13.152.0/22 (1 024 addresses (/22 prefix))
  • 45.130.212.0/22 (1 024 addresses (/22 prefix))
  • 31.128.32.0/22 (1 024 addresses (/22 prefix))
  • 89.19.36.0/22 (1 024 addresses (/22 prefix))
  • 89.106.28.0/22 (1 024 addresses (/22 prefix))
  • 104.121.64.0/22 (1 024 addresses (/22 prefix))
  • 94.158.240.0/22 (1 024 addresses (/22 prefix))
  • 45.152.86.0/23 (512 addresses (/23 prefix))
  • 91.218.142.0/23 (512 addresses (/23 prefix))
  • 90.156.254.0/23 (512 addresses (/23 prefix))
  • 83.222.20.0/23 (512 addresses (/23 prefix))
  • 104.121.68.0/23 (512 addresses (/23 prefix))
  • 37.233.82.0/23 (512 addresses (/23 prefix))
  • 37.233.84.0/23 (512 addresses (/23 prefix))
  • 213.218.244.0/23 (512 addresses (/23 prefix))
  • 45.145.163.0/24 (256 addresses (/24 prefix))
  • 193.22.244.0/24 (256 addresses (/24 prefix))
  • 77.73.238.0/24 (256 addresses (/24 prefix))
  • 77.73.235.0/24 (256 addresses (/24 prefix))
  • 89.40.204.0/24 (256 addresses (/24 prefix))
  • 77.73.233.0/24 (256 addresses (/24 prefix))
  • 46.173.20.0/24 (256 addresses (/24 prefix))
  • 91.193.25.0/24 (256 addresses (/24 prefix))
  • 45.156.20.0/24 (256 addresses (/24 prefix))
  • 45.145.168.0/24 (256 addresses (/24 prefix))
  • 2.58.98.0/24 (256 addresses (/24 prefix))
  • 45.145.6.0/24 (256 addresses (/24 prefix))
  • 45.145.5.0/24 (256 addresses (/24 prefix))
  • 45.137.188.0/24 (256 addresses (/24 prefix))
  • 45.92.174.0/24 (256 addresses (/24 prefix))
  • 185.77.231.0/24 (256 addresses (/24 prefix))
  • 45.11.94.0/24 (256 addresses (/24 prefix))
  • 81.19.134.0/24 (256 addresses (/24 prefix))
  • 193.23.3.0/24 (256 addresses (/24 prefix))
  • 193.28.186.0/24 (256 addresses (/24 prefix))
  • 193.43.72.0/24 (256 addresses (/24 prefix))
  • 193.56.188.0/24 (256 addresses (/24 prefix))
  • 193.56.190.0/24 (256 addresses (/24 prefix))
  • 37.233.86.0/24 (256 addresses (/24 prefix))
  • 193.242.106.0/24 (256 addresses (/24 prefix))
  • 193.242.109.0/24 (256 addresses (/24 prefix))
  • 194.36.208.0/24 (256 addresses (/24 prefix))
  • 194.113.209.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (1 total)

  • 2a02:2d8::/32