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)
- St. Maarten Guide - compiled by Philipsburg Jubilee Library