$ query “AS9002” --type=asn → 1 result(s)
AS9002 · RETN-AS
RETN Limited
AS9002 belongs to RETN Limited and is a major transit provider, registered in the United Kingdom since 2008. The system announces a respectable 27 904 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the United Kingdom, with additional presence in the Netherlands and Germany, and smaller footprints in 15 additional countries.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #11 by Reach — Top 100 by customer cone size
- #26 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
- October 10, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 19 / 18
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 27 904
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇬🇧 United Kingdom (11 648 IPs), 🇳🇱 Netherlands (3 616 IPs), 🇩🇪 Germany (1 280 IPs) and 15 more
- Prefix Changed
- October 01, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 3 upstreams providing transit
- Peers
- 1 068 networks exchanging traffic without transit
- Downstream Customers
- 1 241 downstreams buying transit
- Unclassified
- 718 unclassified BGP neighbors
- Degree
- 3 030 unique BGP neighbors
- Reach
- 12 703 networks in customer cone
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (19 total)
- 87.245.224.0/19 (8 192 addresses (/19 prefix))
- 139.45.192.0/19 (8 192 addresses (/19 prefix))
- 87.245.208.0/21 (2 048 addresses (/21 prefix))
- 89.19.36.0/22 (1 024 addresses (/22 prefix))
- 94.158.240.0/22 (1 024 addresses (/22 prefix))
- 104.121.64.0/22 (1 024 addresses (/22 prefix))
- 185.13.152.0/22 (1 024 addresses (/22 prefix))
- 185.50.164.0/22 (1 024 addresses (/22 prefix))
- 185.82.8.0/22 (1 024 addresses (/22 prefix))
- 193.109.100.0/22 (1 024 addresses (/22 prefix))
- 104.121.68.0/23 (512 addresses (/23 prefix))
- 23.56.98.0/24 (256 addresses (/24 prefix))
- 45.39.107.0/24 (256 addresses (/24 prefix))
- 45.39.108.0/24 (256 addresses (/24 prefix))
- 81.19.134.0/24 (256 addresses (/24 prefix))
- 85.136.179.0/24 (256 addresses (/24 prefix))
- 104.233.6.0/24 (256 addresses (/24 prefix))
- 213.108.245.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (1 total)
- 2a02:2d8::/32