> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blockdb.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Chain

> Supported EVM chain IDs compatible with ChainList.

An enumeration of supported Ethereum chain IDs. Compatible with [ChainList](https://chainlist.org/). Operational coverage and rollout status for these networks are summarized on the [Data Catalog Coverage](/data-catalog/overview/coverage) page.

***

### Values

| Value | Description | Status |
| - | - | - |
| `1` | Ethereum Mainnet | ✅ Supported |
| `10` | Optimism | 🔵 Investigation |
| `56` | BNB Chain | 🔵 Investigation |
| `130` | Unichain | 🔵 Investigation |
| `137` | Polygon | 🔵 Investigation |
| `146` | Sonic | 🔵 Investigation |
| `5000` | Mantle | 🔵 Investigation |
| `8453` | Base | 🔵 Investigation |
| `42161` | Arbitrum | 🔵 Investigation |
| `43114` | Avalanche C-Chain | 🔵 Investigation |
| `59144` | Linea | 🔵 Investigation |

<Callout icon="lightbulb" color="#3B82F6" iconType="regular">
  Need a chain prioritized? Contact **[support@blockdb.io](mailto:support@blockdb.io)** directly and we will help scope timelines and requirements.
</Callout>


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