If you are willing to contact the MGM corporate office, you can go to the official website of MGM Grand. You have to click on the Contact Us option at the top of the MGM homepage. There, you can choose the MGM Grand Las Vegas phone number according to your requirements and give it a call. The customer representatives will help you with the bookings and resolve all the queries related to MGM Grand.
You can also use the Email address given at the bottom of the homepage of MGM Grand to contact the business departments. You can also request reservations using the email option.