939 area code: location, overlays and numbers
In San Juan, Puerto Rico, area code 939 has been in service since 2001 as a US telephone area code, and it shares an overlay with 787.
- Location
- San Juan, Puerto Rico
- Service start
- 2001
- Time zone used
- Atlantic (UTC-4)
- Overlay
- 787
- Calls inside the area
- Full 10-digit dialling
- Rate centre list
- 84
- Exhaust, projected
- 2054
- Code for the country
- +1 (United States)
Source: NANPA public reports, the report on area codes and the report on rate centres, with a file date of 11/01/2026. The exhaust year is taken from the NANPA projections release 2026-1 (April 2026). We are not an official NANPA site.
Get your own 939 number
There are two paths to a 939 number. With a provider, a new number comes with the plan, and at sign-up you choose from the pool it holds in the code. Sellers post numbers they already hold, often numbers that follow a pattern, at a one-time price, and you later move the number to a provider.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers that list local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. The order stays the same, based on first-year cost. How we earn
Places in the 939 area code
For 939, NANPA lists 84 rate centres. Each marks a local calling area where numbers get assigned:
Aguada, Adjuntas, Aguas Buenas, Aguadilla, Aibonito, Aguirre, Arecibo, Anasco, Barceloneta, Arroyo, Bayamon Norte, Barranquitas, Cabo Rojo, Bayamon Sur, Camuy, Caguas, Carolina, Canovanas, Cayey, Catano, Cidra, Ciales, Comerio, Coamo, Culebra, Corozal, Fajardo, Dorado, Guanica, Florida, Guayanilla, Guayama, Gurabo, Guaynabo, Humacao, Hormigueros, Isla Verde, Isabela, Juana Diaz, Jayuya, Lajas, Juncos, Las Marias, Lares, Levittown, Las Piedras, Manati, Luquillo, Maunabo, Maricao, Moca, Mayaguez, Naguabo, Morovis, Orocovis, Naranjito, Ponce, Penuelas, Quebradillas, Pueblo Viejo and 24 more.
Other related area codes
The same area and the same pool of numbers: 787. Any of these codes can supply a new number here, so ask for the one you want.
939 area code questions
Which area does 939 cover?
In San Juan, Puerto Rico, 939 rings in the area around San Juan-Bayamón-Caguas, PR.
Which country code applies to a 939 number?
+1. Because 939 belongs to the North American Numbering Plan, dialing from abroad means +1 939 plus the 7-digit number.
What time is it in the 939 area code?
The time in 939 is Atlantic (UTC-4).
Which callers use a 939 number?
Callers with numbers in this code include homes, mobiles and local businesses, along with people who fake a local number. Seeing 939 on your screen shows the number's assignment location, but it does not identify who is calling.