Currently CoinZoom is available in most states of the USA except Maine, New York, North Carolina, Ohio, and Texas.
Please see this page for information about states that CoinZoom is licensed to operate in: https://coinzoom.com/legal-licenses/
In order to comply with the law, CoinZoom must close any account of residents of a state that has not licensed CoinZoom and take any other actions required by law.
Please see this article for which countries CoinZoom is available in.