How to call Sint Maarten from the USA/Canada:

dial 1 + 721 + local phone number

Calling from another country?

The time in Sint Maarten is now 08:19:29pm

Calling Sint Maarten from the United States explained:

1 - Country Code for Sint Maarten
721 - area code within the NANP
local phone number - 7 digits
US to Sint Maarten international dialing format: 1 721 ??? ????
this country is part of the North American Numbering Plan - NANP (calling it works like a US state to state call)

Phone Books:

Teledom - comprehensive commercial directory

Updates:

Sint Maarten telephone numbering changes - September 2011