PrimeXBT is not available in the US. Many US-based users are still able to access PrimeXBT's services by resorting to a VPN provider in order to change their IP address location to a country where PrimeXBT is available, that being said, doing so is not legal, and it can lead to losing all the assets that you have deposited into PrimeXBT while doing so, our suggestion is that you never use a VPN provider while using a geo-restricted crypto exchange.