Area Code 939: Puerto Rico, Puerto Rico
939 is a telephone area code serving Puerto Rico. It is part of the North American Numbering Plan and is dialed with the country code +1.
Numbers beginning with 939 are located in Puerto Rico, United States (NANP region: Territory).
How to Dial Area Code 939
| Calling from | What to dial |
|---|---|
| Anywhere in the US or Canada | 1 939 XXX-XXXX (10-digit dialing: 939 + 7-digit number) |
| Local call inside the same area code | 7-digit number in most areas; 10 digits where an overlay code is active |
| From the UK or Europe | 00 1 939 XXX XXXX |
| From Australia | 0011 1 939 XXX XXXX |
| From a mobile phone anywhere | +1 939 XXX XXXX |
Whatever country you are calling from, the + symbol replaces the exit code. Save the contact as +1 939 XXXXXXX and it will dial correctly from any phone in the world.
Time Zone for Area Code 939
Calls to a 939 number ring in the America/Puerto_Rico time zone, standard offset UTC-04:00. This zone does not observe daylight saving time, so the offset above holds all year.
Note: Puerto Rico does not observe daylight saving time.
Other Area Codes in Puerto Rico
These codes also serve Puerto Rico. Area codes are assigned by the North American Numbering Plan Administration (NANPA).
| Area Code | Cities / Coverage |
|---|---|
| 787 | San Juan, Bayamon |
See all 2 area codes in Puerto Rico →
Frequently Asked Questions
Where is area code 939?
Area code 939 is in Puerto Rico, United States. It covers San Juan (overlay).
What time zone is area code 939 in?
Area code 939 rings in the America/Puerto_Rico time zone (UTC-04:00 standard).
Do I need to dial 1 before area code 939?
Yes, for a long-distance call inside the US and Canada you dial 1 first, then 939, then the seven-digit number. The 1 is the North American long-distance trunk prefix — it is not the country code. From outside North America you dial your exit code then 1 then 939.
Is area code 939 toll-free?
No. 939 is a standard geographic area code, so normal long-distance rates apply unless your plan includes them. Toll-free NANP codes are 800, 833, 844, 855, 866, 877 and 888.