On Pyth publisher nodes, we provide particular ports that you can use to connect to Testnet, Devnet, and Pythnet.
These ports are as follows:
30080/30443: Devnet
40080/40443: Testnet
50080/50443: Pythnet
Currently, these lead to shared services. If you need dedicated services for any of these networks, please contact our support team, and we can discuss the different options.