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What is the max number of distinct token addresses (for ERC20, ERC721 etc.) can an EOA wallet contain?

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  • Do you mean Metamask, another wallet, or just the EOA account? Jul 16 at 9:57
  • infinite, infinite
    – Nulik
    Jul 16 at 11:55
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In the current version of Ethereum an address has 160 bits, so there are at most 2^160 different contracts.

The ERC 20 standard implicitly assumes that an address contains a single token, so an EOA can have at most 2^160 EIP-20 tokens.

There new standards like EIP 1155 that allows a single address to manage multiple tokens. An id of type uint is used to identify different tokens, so an EOA can have at most 2^256 * 2^160 EIP-1155 tokens.

In the future a new standard can be defined increasing even more. Also it is possible to define a new type of address.

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An EOA address can hold any number of tokens. There is no limit based on count of token or type(standard) of token.

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