# Chain ID and Network ID
# Chain ID
Crypto.com Chain has different Chain ID to distinguish between devnet, testnet and mainnet. When running the Crypto.com Chain in your local environment, you will also need to decide your own Chain ID.
Different chain has different address prefixes for its corresponding network types, these prefixes are:
Mainnet | Testnet | Regtest |
---|---|---|
cro | tcro | dcro |
For example, our testnet Chain ID is testnet-thaler-crypto-com-chain-42
.
# Network ID
Network ID is the last two hex characters of the Chain ID. Using our testnet Chain ID testnet-thaler-crypto-com-chain-42
as an example, the network ID would be 42
.