| Start Date | 09/15/2001 |
| Current Time in Area Code 939 | 939> AST |
| Timezone | Atlantic Standard Time |
| Metro Area(s) | Aguadilla-Isabela, PR Arecibo, PR Coamo, PR Coco, PR Guayama, PR Jayuya, PR Ponce, PR San Germán, PR San Juan-Bayamón-Caguas, PR Santa Isabel, PR Yauco, PR |
| Population (2020) | 3180673 |
| Adjacent Area Codes | 787 |
| Overlay Area Codes | 787 |