Area code 939
Area code 939 serves San Juan and nearby parts of Puerto Rico, including Bayamon, Carolina and Ponce. It is on Atlantic Time all year, with no daylight saving time. 787 is an overlay for the same area.
Area code 939 at a glance
| State | Puerto Rico (PR) |
| Main city | San Juan |
| Time zone | Atlantic Time |
| UTC offset | UTC−4 |
| Daylight saving time | No |
| Overlay codes | 787 |
Cities in 939
- San Juan
- Bayamon
- Carolina
- Ponce
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 939 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 939 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 939 between |
|---|---|
| Eastern | 8:00 AM to 9:00 PM |
| Central | 7:00 AM to 8:00 PM |
| Mountain | 6:00 AM to 7:00 PM |
| Arizona | 5:00 AM to 6:00 PM |
| Pacific | 5:00 AM to 6:00 PM |
See the time in 939 without leaving your CRM
Parse is a free Chrome extension that shows the local time and weather beside every phone number on the page.
Other area codes in Puerto Rico
939 is the only area code in our list for Puerto Rico.
Questions about 939
What time zone is area code 939?
Area code 939 is on Atlantic Time. It does not observe daylight saving time.
Where is area code 939?
Area code 939 is in Puerto Rico. Its main city is San Juan, and it also covers Bayamon, Carolina and Ponce.
What are the legal hours to call a 939 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 939?
787 covers the same area as 939, so numbers in the same town can have either code.