Google Account Settings offer a comprehensive overview of all the accounts associated with your primary Gmail account. By accessing the account settings, you can navigate to the “Security” or “Account Info” section to find a list of linked accounts.

Google allows its users to set up an unlimited number of Gmail addresses. You can manage all of your Gmail addresses in one place through your Google account, which makes it easy to stay organized. There is a caveat though: You'll be limited to four total Gmail accounts linked to the same phone number.