Area Code Atlas

Introduction of NPA 721 (Sint Maarten, Netherlands, Antilles)

Introduction on NPA 721 (Sint Maarten, Netherlands Antilles

Introduction of NPA 721 (Sint Maarten)

Updated Information - Introduction of NPA 721 (Sint Maarten)

Introduction of area code 721 planned for Sint Maarten

The North American Numbering Plan Administrator granted the issuance of area code 721 to Sint Maarten on July 27, 2011, marking the country's planned entry into the NANP. This planning set the stage for the transition from the previous country code 599.

Area code 721 introduced for Sint Maarten

Area code 721 was introduced on September 30, 2011, when Sint Maarten officially became a member of the North American Numbering Plan. A permissive dialing period began, allowing calls using either the old country code 599 or the new NANP prefix 1-721.

Permissive dialing period begins for area code 721

A permissive dialing period commenced on September 30, 2011, allowing callers to reach Sint Maarten using either the former country code 599 or the new NANP area code 721. This period lasted until September 30, 2012, facilitating a smooth transition.

Updated Information - Introduction of NPA 721 (Sint Maarten)

Introduction on NPA 721 (Sint Maarten)

Mandatory dialing of NPA 721 in Sint Maarten

Mandatory dialing of area code 721 began on September 30, 2012, ending the permissive period. After this date, calls to Sint Maarten required the use of the 721 area code, and calls using the old country code 599 were routed to intercept.

Activation of area code 721 for all services in Sint Maarten

By October 5, 2012, all landline and mobile equipment in Sint Maarten was fully configured to handle calls using the new area code 721. The previous dialing code 599 was discontinued for Sint Maarten, completing the transition to the NANP.