Area code 939 serves Puerto Rico, including the vibrant city of San Juan and the culturally rich area of Santurce. This region is known for its blend of historical charm and modern amenities, making it an attractive locale for both tourists and residents. Business owners might choose to use this local area code to foster a strong connection with the local community, showcasing their commitment to serving Puerto Rico's diverse population. By establishing a presence in this dynamic area, businesses can tap into a thriving market and benefit from the region's unique blend of tradition and innovation.