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AREA CODE · COMMONWEALTH OF PUERTO RICO

Area code 939

Area code 939 covers San Juan, Commonwealth of Puerto Rico. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Commonwealth of Puerto Rico Major City: San Juan Atlantic Time (AST) Overlay: None
01 / WHERE IT IS

Where is area code 939?

Area code 939 is assigned to San Juan and the surrounding region in Commonwealth of Puerto Rico. Calls to numbers that start with 939 are routed to this area.

Area code 939 is not currently part of an overlay: it serves its territory on its own.

Counties covered

Bayamón MunicipioSan Juan MunicipioTrujillo Alto MunicipioPonce MunicipioAguada MunicipioCaguas MunicipioArecibo Municipio

Line types

  • Mobile 79.17%
  • Landline 20.83%
02 / MAP

Area code 939 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in San Juan

This area code is in the Atlantic Time (AST) time zone.

Local timeSan Juan, PR--:--:--

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America/Puerto_RicoLive
04 / HOW TO DIAL

How to call San Juan

WITHIN THE US939 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 939 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 939 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 939 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 939 555 0123
🇦🇺Australia0011 1 939 555 0123
🇯🇵Japan010 1 939 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 939

Share of the number blocks by carrier and line type.

Landline

Liberty Puerto Rico
36%
Sinch
19%
NATURAL G.C.
19%
Metro by T-Mobile
12%
Lumen Technologies
7%
Others
8%

Mobile

T-Mobile USA
42%
Claro Puerto Rico
31%
Liberty Puerto Rico
22%
Sinch
5%
AT&T Mobility
1%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 939

360 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(939) 200 Mobile Aguadilla T-Mobile USASUNCOM DBA T-MOBILE USA
(939) 201 Mobile Adjuntas Liberty Puerto RicoLIBERTY MOBILE PUERTO RICO INC.
(939) 202 Mobile Levittown Liberty Puerto RicoLIBERTY MOBILE PUERTO RICO INC.
(939) 203 Mobile Manatí T-Mobile USASUNCOM DBA T-MOBILE USA
(939) 204 Landline Río Piedras Liberty Puerto RicoLIBERTY COMMUNICATIONS OF PUERTO RICO LLC
(939) 205 Landline Pueblo Viejo SinchNEUTRAL TANDEM - PR
(939) 206 Mobile Bayamón Norte T-Mobile USASUNCOM DBA T-MOBILE USA
(939) 207 Mobile Santurce T-Mobile USASUNCOM DBA T-MOBILE USA
(939) 208 Mobile Caguas Liberty Puerto RicoLIBERTY MOBILE PUERTO RICO INC.
(939) 209 Mobile Ponce T-Mobile USASUNCOM DBA T-MOBILE USA

Showing 10 of 360 prefixes

07 / FAQ

Frequently asked questions about area code 939

Where is area code 939 used?
Area code 939 serves San Juan and the surrounding area in Commonwealth of Puerto Rico, including Bayamón Municipio, San Juan Municipio, Trujillo Alto Municipio, Ponce Municipio, Aguada Municipio.
What city is area code 939 from?
The main city of area code 939 is San Juan, PR.
What time zone is area code 939 in?
Area code 939 is in the Atlantic Time (AST) time zone (America/Puerto_Rico).
Is 939 an overlay area code?
No. Area code 939 is not currently part of an overlay.
How do I call a number with area code 939 from the United States?
Dial the 10 digits: 939 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 939 number from another country?
Dial your country's exit code (or +), then 1, then 939 and the seven-digit number. From a mobile you can use +1 939 XXX XXXX.
Which carriers use area code 939?
Most landline blocks belong to Liberty Puerto Rico and most mobile blocks to T-Mobile USA. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 939 for landlines, mobiles or both?
Both. About 20.83% of the number blocks are landline, 79.17% mobile.
How do I save a 939 number in WhatsApp or my phone?
Save it in international format: +1 939 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 939?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

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Other area codes in Commonwealth of Puerto Rico

787 · San Juan

View all Commonwealth of Puerto Rico area codes →