> For the complete documentation index, see [llms.txt](https://move-book.com/llms.txt)

# Appendix B: Reserved Addresses

Reserved addresses are special addresses that have a specific purpose on Sui. They stay the same
between environments and are used for specific native operations.

- `0x1` - address of the [Standard Library](./../move-basics/standard-library.md) (alias `std`)
- `0x2` - address of the [Sui Framework](./../programmability/sui-framework.md) (alias `sui`)
- `0x5` - address of the `SuiSystem` object
- `0x6` - address of the system [`Clock` object](./../programmability/epoch-and-time.md)
- `0x8` - address of the system [`Random` object](./../programmability/randomness.md)
- `0xc` - address of the system
  [`CoinRegistry` object](./../programmability/balance-and-coin.md#currency-and-the-coin-registry)
- `0xd` - address of the system `DisplayRegistry` object (see
  [Object Display](./../programmability/display.md))
- `0x403` - address of the `DenyList` system object
- `0xacc` - address of the system `AccumulatorRoot` object