# Supported Networks
Source: https://docs.chain.link/ace/supported-networks
Last Updated: 2026-04-20


ACE Beta is available on the following testnet networks. Mainnet support will be available soon.

> **NOTE: About chain selectors**
>
> A **chain selector** is Chainlink's unique numeric identifier for each blockchain network. Unlike chain IDs, chain
> selectors are globally unique across all supported networks. The Coordinator API uses chain selectors — not chain IDs
> — in all multi-chain operations such as creating policy engines, registering targets, or deploying protections.