> ## Documentation Index
> Fetch the complete documentation index at: https://circle-devdocs-test-ai-codegen-component.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CCTP Supported Chains and Domains

## CCTP V2 Supported Blockchains

CCTP V2 is available on the following blockchains, where USDC is natively
issued, providing **Standard Transfer**, **Fast Transfer**, and **Hooks**
functionalities.

| Mainnet                     | Testnet                             |
| --------------------------- | ----------------------------------- |
| Arbitrum                    | Arbitrum Sepolia                    |
| Avalanche                   | Avalanche Fuji                      |
| Base                        | Base Sepolia                        |
| BNB Smart Chain (USYC only) | BNB Smart Chain Testnet (USYC only) |
| Codex                       | Codex Testnet                       |
| Ethereum                    | Ethereum Sepolia                    |
| HyperEVM                    | HyperEVM Testnet                    |
| Ink                         | Ink Testnet                         |
| Linea                       | Linea Sepolia                       |
| OP Mainnet                  | OP Sepolia                          |
| Plume                       | Plume Testnet                       |
| Polygon PoS                 | Polygon PoS Amoy                    |
| Sei                         | Sei Testnet                         |
| Solana                      | Solana Devnet                       |
| Sonic                       | Sonic Testnet                       |
| Unichain                    | Unichain Sepolia                    |
| World Chain                 | World Chain Sepolia                 |
| XDC                         | XDC Apothem                         |

## CCTP V2 Supported Domains

A **domain** is a Circle-issued identifier for a blockchain where CCTP contracts
are deployed. Domains don't map to any existing public chain ID.

<Note>
  **Supported tokens**

  Not all domains support the same tokens.

  * [**USDC**](/stablecoins/what-is-usdc): Supported on all CCTP V2 domains
    except BNB Smart Chain
  * [**USYC**](/tokenized/usyc/overview): Supported only on Ethereum and BNB
    Smart Chain
</Note>

| Domain | Name            |
| :----- | :-------------- |
| 0      | Ethereum        |
| 1      | Avalanche       |
| 2      | OP              |
| 3      | Arbitrum        |
| 5      | Solana          |
| 6      | Base            |
| 7      | Polygon PoS     |
| 10     | Unichain        |
| 11     | Linea           |
| 12     | Codex           |
| 13     | Sonic           |
| 14     | World Chain     |
| 16     | Sei             |
| 17     | BNB Smart Chain |
| 18     | XDC             |
| 19     | HyperEVM        |
| 21     | Ink             |
| 22     | Plume           |

<br />

**WHAT'S NEXT**

* [CCTP EVM Contracts and Interfaces <Icon icon="arrow-right" />](/cctp/evm-smart-contracts)