# Network ID and Chain ID

The blockchain network has two identifiers, Network ID and Chain ID.

Network IDs are for blockchain node communication and Chain IDs are for signing transactions.

| Network Name           | Network ID | Chain ID |
| ---------------------- | ---------- | -------- |
| Testnet                | 0          | 0        |
| Mainnet                | 1          | 1        |
| Devnet                 | 2          | 2        |
| Reserved (to be added) | 3\~        | 3\~      |