Which country is Coinbase available in?

I'm curious to know, which countries does Coinbase operate in? As a cryptocurrency enthusiast, I'm always on the lookout for reputable platforms to buy, sell, and manage my digital assets. Coinbase being a well-known name in the industry, I'm eager to find out if it's accessible in my region. Could you provide me with an overview of the countries where Coinbase is available, and perhaps also mention any restrictions or limitations that might apply to users in specific regions?