I searched 'Sepolia' in my wallet's network list and got 20+ similar names. Here's the one number that actually matters.

During my initial attempt at using a Web3 wallet, I searched for the Sepolia test network in my wallet's list of networks. I encountered multiple similar names such as "zkSync Sepolia" and "Binary Sepolia". The source highlights that network names on Web3 wallets are not unique, as testnets for different chains can share nearly identical names.

The key piece of information to remember is that the chain ID is the only identifier that disambiguates these networks. For Sepolia testnet, the chain ID is 11155111. Using the name search instead of the chain ID could lead to the test funds ending up on an entirely different network than intended. The source also mentions two additional issues encountered during the session, including a faucet that required mainnet ETH and another that resulted in quick transfer times, contrasting with traditional banking methods.

The key takeaway is that any field a wallet UI allows you to type is essentially a name, while any field defined by a fixed number serves as the actual key.