What states can use Kraken?

Can you clarify for me which states are allowed to use Kraken, the cryptocurrency exchange platform? I understand that there may be some restrictions based on regional regulations and laws. Are there any specific states in the United States, or even globally, that are prohibited from accessing Kraken's services? It would be helpful to know this information in order to ensure compliance with all relevant regulations. Additionally, are there any plans for Kraken to expand its services to new regions in the future?