The Exonet, commonly known as X.O.N. or The Zon, is the interplanetary system of interconnected InterMesh networks.

Its main distinguishing features compared to short range network systems are:

• A protocol stack layer dedicated to ultra high frequency phonon modulation compression and error correction
• Better handling of high round trip times via bidirectional transfer, lack of protocol negotiation, and long burst flow control
• More resilient to route distribution and routing over a diverse topology including store and forward routers
• CDN caching built into the application layer, allowing popular sites such as Exobase to be hosted locally
• Lack of many peer to peer and distributed ledger functions present in the InterMesh
• Built in support for large (Yottabyte+) size out-of-band one time pads to prevent quantum cracking of large data streams

The communications infrastructure of the Exonet consists of routers, data links such as Autonomous Data Relay Satellites, repeaters, and connection endpoints. By data volume the largest users of these endpoints are various InterMesh Service Providers (ISPs) which use them to peer with InterMesh networks in other locations, however they are also used directly in off-planet locations such as ships and stations that have ad-hoc InterMesh with no ISP presence.