ASN Lookup
AS9002 · RETN Limited
An Autonomous System (AS) is a network run by one operator, like an ISP, with its own number on the internet. See who owns it, its IP prefixes, and its upstreams.
AS9002live in BGP
RETN LimitednameRETN-AS
countryUnited Kingdom (GB)
rirRIPE NCC
registeredMar 25, 2008
updatedNov 7, 2026
abuse[email protected]
Upstreams
Networks that sell this AS its internet transit.1,166 networks below it (downstream)
Announced prefixes · 14 IPv4 · 1 IPv6
45.39.107.0/24 45.39.108.0/24 81.19.134.0/24 85.136.179.0/24 87.245.208.0/21 87.245.224.0/19 89.19.36.0/22 94.158.240.0/22 104.233.6.0/24 139.45.192.0/19 185.13.152.0/22 185.82.8.0/22 193.109.100.0/22 213.108.245.0/24 2a02:2d8::/32
Upstream graphTransit paths from this AS up to the tier-1 networks. Click a node to open that AS.
building the graph from BGP paths…