Akamai Technologies is one of the trusted partners that Apple uses to support its iCloud Private Relay feature, which is a new internet privacy service that encrypts and relays users’ web traffic through two separate proxies. Akamai provides the egress proxy service, which decrypts the web address that the user wants to visit and forwards them to their destination. Akamai also provides the Oblivious DNS over HTTPS (ODoH) service, which keeps DNS queries private.
ASN36183 is the autonomous system number (ASN) assigned to Akamai Technologies by the Internet Assigned Numbers Authority (IANA). An ASN is a unique identifier that allows network operators to exchange routing information and coordinate traffic delivery on the internet4. Akamai Technologies uses ASN36183 to announce its network prefixes and peer with other networks.
Therefore, the relationship between Akamai Technologies ASN36183 and Apple iCloud Private Relay is that Akamai uses this ASN to provide some of the infrastructure services that enable Private Relay to function.