939 Area Code
Puerto Rico (overlay), Puerto Rico
Area code 939 is located in Puerto Rico (overlay), Puerto Rico. It covers San Juan, Bayamón, and surrounding areas in the Atlantic time zone (UTC-4). Administered by NANPA.
Where is area code 939?
Area code 939 is located in Puerto Rico (overlay), Puerto Rico. It covers San Juan, Bayamón, and surrounding areas in the Atlantic time zone (UTC-4).
Cities Covered by Area Code 939
Area code 939 primarily serves the Puerto Rico (overlay) area of Puerto Rico. The exact coverage includes San Juan, Bayamón, and Carolina, along with surrounding communities and suburbs.
Time Zone
Atlantic Time — UTC-4
Area code 939 operates in the Atlantic Time Zone. When calling 939 numbers from a different time zone, be sure to account for the time difference to reach people during business hours.
About Area Code 939
Area code 939 was introduced in 2010 as a geographic area code serving Puerto Rico (overlay), Puerto Rico. It remains the primary area code for this region. Area codes are administered by NANPA (North American Numbering Plan Administration), the organization responsible for managing phone number resources in the US and Canada.