Dialing Instructions from Verizon:

Country Code From To Dial Network Instruction
590 St. Martin - French U.S. GSM Dial Plus Sign then 1 then ten digit U.S. number
590 St. Martin - French Local GSM Dial Plus Sign then Country Code then Local Number with Area Code (if applicable)
590 St. Martin - French Other Countries GSM Dial Plus Sign then Country Code then international number
590 St. Martin - French Customer Service GSM Dial Plus Sign then 1 then 908-559-4899
590 St. Martin - French Customer Service from a landline None Dial 00 1 908 559 4899 Toll Charges Apply
721 St. Maarten - Dutch U.S. GSM Dial Plus Sign then 1 then ten digit U.S. number
721 St. Maarten - Dutch Local GSM Dial Plus Sign then Country Code then Local Number with Area Code (if applicable)
721 St. Maarten - Dutch Other Countries GSM Dial Plus Sign then Country Code then international number
721 St. Maarten - Dutch Customer Service GSM Dial Plus Sign then 1 then 908-559-4899
721 St. Maarten - Dutch Customer Service from a landline None Dial 00 1 908 559 4899 Toll Charges Apply