Puerto Rico is currently using two area codes. Puerto Rico has one area code split and one area code overlay in service.
Area code 809 originally covered most of the Caribbean when it was established in 1958. It was not until 1996 that an area code was established exclusively for Puerto Rico. Since Puerto Rico previously shared area code 809 with other Caribbean nations the establishment of area code 787 was technically a split of area code 809. In 2001 area code 939 was put into service as an overlay of area code 787.
Changes and History of Puerto Rico Area Codes:
Area code 809 was put into service. Originally area code 809 covered most of the Caribbean. In 1996 area code 809 was split to form area code 787.
Area code 787 was put into service. Area code 787 was created from a split of area code 809. In 2001 area code 787 was overlaid with area code 939.
Area code 939 was put into service. Area code 939 is an overlay of area code 787.