## Reserved Network IDs

 `NetworkID` (or `ChainID`) is a mechanism to separate networks(or chains) owned by different organizations. **DEXON foundation** reserves these networkIDs:
 - **237**: mainnet
 - **238**: testnet
 - **239, 240**: private testnet during development.


### Reference
- [NetworkID EIP](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-155.md)