What is the Country Code for the United States?

How can I dial Sint Maarten (Dutch Side) from the United States using their new country code of 1-721?

• The country code was changed on September 30 2011 from 599 to 721. The recording said to replace "599 with 1-721." Previously, I dialed 011-599-[7 digit number], but when I try 011-1721-[7 digit number] it doesn't work. I've tried 011-721-###-####, 1-721-###-####, 01-721-###-####, and I feel like I've exhausted the options. Nothing seems to work. Any ideas on how I can dial Sint Maarten from the US using their new country code? Thanks!!

• Answer:

  Try this link below; bit it says that Sint Maarten is not up to date: http://www.tripadvisor.com/Travel-g147346-s605/St-Maarten-St-Martin:Caribbean:Telephones.html