> ## 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>