Skip to content
thenetworkery

AS number lookup

Every network on the internet routes under an autonomous system (AS) number. Each page says who operates the AS, where it is registered, what it announces, how much of it RPKI protects, who it connects to and where it peers.

Best-connected networks

Transit and backbone networks

Content and cloud networks

Access networks (ISPs)

Network names and peering from PeeringDB, registration from the RIR delegation data, both updated daily. For an IP address or prefix, use the network report.