In Feburary 2016 18,
Log on to your HostGator control panel, also known as cPanel. If you're unsure of how to access your cPanel, click the link found in the email you received once you purchased your HostGator hosting plan or by typing 'cpanel' at the end of your domain name, as an example, 'http://www.mywebsite.com/cpanel.' Don't include the quotes or punctuation. This takes you right to the Hostgator control panel after you input your username and password.
Scroll to the bottom of the cPanel page.
Look at 'IP Address' under the blue 'Account Information' bar. Here you will find your service plan, the IP address, the server name and your name servers.
In Feburary 2016 18,