The numeric sequence 939 designates a specific geographic area within the North American Numbering Plan. This three-digit identifier serves as a prefix for telephone numbers, enabling the routing of calls to the intended destination. As an illustration, a complete telephone number within this region would begin with 939, followed by a seven-digit subscriber number.
This numbering resource facilitates communication and commerce within its assigned region. Its allocation represents a structured approach to managing telecommunications infrastructure and ensuring connectivity for residents and businesses. The history of its implementation reflects the evolving needs of the telecommunications landscape and the growth of the population it serves.