February

Next month, round-the-clock, commission-free cryptocurrency trading comes to the Robinhood platform. Trading will be limited to Bitcoin (BTC) and Ethereum (ETH), with more coins tradeable later. Trading functionality for BTC and ETH will be released gradually in waves to Robinhood residents in California, Massachusetts, Missouri, Montana, and New Hampshire. Robinhood Crypto will be available in more states soon

this is right off there site on what states will be allowed to sign up