IPv4 Address: 216.73.216.135

ASN: 16509

ISP / Organisation: Anthropic, PBC

Border Gateway Protocol (BGP) is a routing protocol used to exchange routing and reachability information among autonomous systems across the internet.

It maintains a table of IP prefixes designating network reachability between autonomous systems.

Internet Service Providers use BGP for core routing decisions.

Useful resources: Wikipedia, BGP Tools, RFC4271