# Does Fuel networks have a network ID (Like EVM) and will they overlap with existing EVM network IDs?

**URL:** <https://forum.fuel.network/t/does-fuel-networks-have-a-network-id-like-evm-and-will-they-overlap-with-existing-evm-network-ids/6294>\
**Category:** General\
**Created:** [July 18, 2024, 12:57pm UTC](https://forum.fuel.network/t/does-fuel-networks-have-a-network-id-like-evm-and-will-they-overlap-with-existing-evm-network-ids/6294 "2024-07-18T12:57:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JasoonS](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/jasoons/32/2727_2.png) [@JasoonS](https://forum.fuel.network/u/JasoonS)\
**Post date:** [July 18, 2024, 12:57pm UTC](https://forum.fuel.network/t/does-fuel-networks-have-a-network-id-like-evm-and-will-they-overlap-with-existing-evm-network-ids/6294/1 "2024-07-18T12:57:29Z")

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For example Ethereum mainnet is 1, and Polygon is 137. Would Fuel networks respect these chain IDs, for example would fuel Mainnet be network id 1, or would it be a non-conflicting chainId?

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**Author:** ![Bilogweb3](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/bilogweb3/32/3828_2.png) [@Bilogweb3](https://forum.fuel.network/u/Bilogweb3)\
**Post date:** [December 10, 2024, 8:35pm UTC](https://forum.fuel.network/t/does-fuel-networks-have-a-network-id-like-evm-and-will-they-overlap-with-existing-evm-network-ids/6294/2 "2024-12-10T20:35:42Z")

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Fuel networks would likely use a non-conflicting `chainId`. Ethereum’s mainnet `chainId` is 1, and Polygon’s is 137, but these identifiers are specific to EVM-compatible networks. Since Fuel uses its own execution layer and is not strictly an EVM chain, it would make sense for Fuel to define its own unique `chainId` that doesn’t conflict with existing ones. This ensures proper identification and avoids issues when interacting with other networks or wallets.