Telephone numbers in Curaçao and the Caribbean Netherlands
Aruba and Sint Maarten, also former parts of the Netherlands Antilles, discontinued using the code in 1986 and 2011 respectively. Aruba now uses country code +297, and Sint Maarten uses the North American Numbering Plan (NANP) country code +1 with area code 721.
Area codes 
Originally each island had an area code each with the length of the local numbering varying from island to island (Curaçao had six while Bonaire had only four), however beginning in 1999, the numbers were modified so that each local number was seven digits long. This change left the islands without any area codes, except for Curaçao, which has the area code of 9 along with the seven digit local number.
Sint Maarten joins NANP 
On October 2, 2009, the North American Numbering Plan Administration (NANPA) announced that it had approved the request of Sint Maarten's government to join the NANP and had assigned the territory area code 721. Effective September 30, 2011, Sint Maarten's country code changed to the NANP standard of +1. A permissive dialing period of one full year (to September 30, 2012) was in place when both area code 721 and +599 could be used. Use of +1-721 is now mandatory; a recorded message reminding callers to the +599 numbers to use +1-721 will remain active for one full year.
Historic list of area codes and number ranges 
with area code 9
|(+599) 9 4xx xxxx
(+599) 9 5xx xxxx (mobile)
(+599) 9 6xx xxxx (mobile)
(+599) 9 7xx xxxx
(+599) 9 8xx xxxx
|Bonaire||(+599) 7xx xxxx|
|Sint Maarten (before joining NANP)||(+599) 5xx xxxx|
|Saba||(+599) 4xx xxxx|
|Sint Eustatius||(+599) 3xx xxxx|
|Aruba (until secession)||(+599) 8xx xxxx|
|Non-geographic||(+599) 1xx xxxx
(+599) 6xx xxxx
See also 
Notes and references 
- "PL-418: Introduction of NPA 721 (Sint Maarten)". North American Numbering Plan Administration. 2011-01-05. Retrieved 2011-01-12.
- "PL-423: Updated Information - Introduction of NPA 721 (Sint Maarten)". North American Numbering Plan Administration. 2011-07-23. Retrieved 2011-10-01.
|This Caribbean Netherlands-related article is a stub. You can help Wikipedia by expanding it.|
|This Curaçao-related article is a stub. You can help Wikipedia by expanding it.|
|This article related to telephone numbers is a stub. You can help Wikipedia by expanding it.|